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381

LEGO

Rontu the Master Dragon

Reference: #71842 · released in 2025

Themes: Ninjago

The LEGO Rontu the Master Dragon set was released in 2025 in the Ninjago theme. This building set contains 381 pieces and 4 minifigures, including minifigures of Lloyd and Sora.

This set from LEGO includes a total of 381 parts distributed across 138 distinct unique parts.

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381

Total parts

138

Unique parts

LEGO

Universe

Download instructions 33.99 MB

Set parts (138)

381 parts in the box

Hips and Bright Green Legs with Dark Red Sash, Knee Pads, Robe Ends, Dark Green Trim Print

Hips and Bright Green Legs with Dark Red Sash, Knee Pads, Robe Ends, Dark Green Trim Print

Bright Green

Hips and Dark Red Legs with Orange Sash, Robe End with Sand Green Trim, Red Knee Wraps Print

Hips and Dark Red Legs with Orange Sash, Robe End with Sand Green Trim, Red Knee Wraps Print

Dark Red

Hips and White Legs with Coral Sash, Robe Ends, Gold/Sand Blue Knee Pads Print

Hips and White Legs with Coral Sash, Robe Ends, Gold/Sand Blue Knee Pads Print

White

Torso, Ninja Robe, Sand Green Trim, Dark Tan Armor Plating, Orange Sash Print, Yellow Arms, Black Hands

Torso, Ninja Robe, Sand Green Trim, Dark Tan Armor Plating, Orange Sash Print, Yellow Arms, Black Hands

Dark Red

Torso, Ninja Robes, Dark Green Trim, Dark Red Plated Armor, Dark Tan Strap, Gold Dragon Print, Bright Green Arms, Black Hands

Torso, Ninja Robes, Dark Green Trim, Dark Red Plated Armor, Dark Tan Strap, Gold Dragon Print, Bright Green Arms, Black Hands

Bright Green

Torso, Ninja Robes, Dark Blue/Coral Trim, Dark Blue Belt, Gold Cat Print, White Arms, Dark Blue Hands

Torso, Ninja Robes, Dark Blue/Coral Trim, Dark Blue Belt, Gold Cat Print, White Arms, Dark Blue Hands

White

Torso, Dark Purple Lines/Vines, Gold Chain Print, Dark Green Arms, Black Hands

Torso, Dark Purple Lines/Vines, Gold Chain Print, Dark Green Arms, Black Hands

Dark Green

Plate 2 x 2 Corner

Plate 2 x 2 Corner

Dark Tan

Plate 2 x 12

Black

Plate Special 1 x 2 Side Handle [Free Ends]

Plate Special 1 x 2 Side Handle [Free Ends]

Black

Plate 4 x 4 Corner

Plate 4 x 4 Corner

Dark Bluish Gray

Plate 4 x 4 Corner

Plate 4 x 4 Corner

Dark Blue

Technic Disc 3 x 3

Technic Disc 3 x 3

Black

Brick 1 x 1

Black

Brick 1 x 1

Dark Blue

Brick 1 x 4

Dark Blue

Plate 2 x 4

Dark Bluish Gray

Plate 2 x 4

Dark Purple

Plate 2 x 3

Black

Plate 2 x 3

Dark Blue

Plate 2 x 2

Dark Bluish Gray

Plate 2 x 2

Dark Purple

Plate 1 x 2

Dark Pink

Plate 1 x 2

Pearl Gold

Brick Round 1 x 1 Open Stud

Brick Round 1 x 1 Open Stud

Trans-Light Blue

Tile 2 x 2 with Groove

Tile 2 x 2 with Groove

Dark Tan

Tile 1 x 1 with Groove

Tile 1 x 1 with Groove

Dark Purple

Animal / Creature Body Part, Claw with Clip

Animal / Creature Body Part, Claw with Clip

Pearl Gold

Bar 1L with Clip [Cut Edges and One Side Hole] [Full Clip]

Bar 1L with Clip [Cut Edges and One Side Hole] [Full Clip]

Dark Bluish Gray

Bar 1L with Clip [Cut Edges and One Side Hole] [Full Clip]

Bar 1L with Clip [Cut Edges and One Side Hole] [Full Clip]

Pearl Gold

Brick 1 x 3

Black

Minifig Head Lloyd, Reddish Brown Eyebrows, Green Eyes, Lopsided Open Mouth Grin / Gritted Teeth Print

Minifig Head Lloyd, Reddish Brown Eyebrows, Green Eyes, Lopsided Open Mouth Grin / Gritted Teeth Print

Yellow

Technic Brick 1 x 2 [1 Pin Hole]

Technic Brick 1 x 2 [1 Pin Hole]

Black

Technic Brick 1 x 4 [3 Pin Holes]

Technic Brick 1 x 4 [3 Pin Holes]

Dark Bluish Gray

Technic Axle 4

Red

Technic Axle 8

Black

Plate 1 x 4

Dark Bluish Gray

Plate 1 x 4

Dark Blue

Plate Round 2 x 2 with Axle Hole Type 1 (+ Opening)

Plate Round 2 x 2 with Axle Hole Type 1 (+ Opening)

White

Brick Special 1 x 1 with Headlight

Brick Special 1 x 1 with Headlight

Blue

Plate Special 1 x 1 with Clip Light, Bar Hole [Thick Ring]

Plate Special 1 x 1 with Clip Light, Bar Hole [Thick Ring]

Dark Blue

Dish 2 x 2 Inverted [Radar]

Dish 2 x 2 Inverted [Radar]

Black

Brick Sloped Inverted 45° 4 x 2 Double with 2 x 2 Recessed

Brick Sloped Inverted 45° 4 x 2 Double with 2 x 2 Recessed

Dark Bluish Gray

Hair Mid-Length, Bun

Hair Mid-Length, Bun

Red

Hair High Ponytail with Dark Blue Headphones, Cat Ears Pattern

Hair High Ponytail with Dark Blue Headphones, Cat Ears Pattern

Coral

Creature Body Part, Dragon, Wing Large

Creature Body Part, Dragon, Wing Large

Dark Pink

Hat, Ronin

Black

Brick 1 x 12

Dark Purple

Plate Round 1 x 1 with Solid Stud

Plate Round 1 x 1 with Solid Stud

Black

Plate Round 1 x 1 with Solid Stud

Plate Round 1 x 1 with Solid Stud

Dark Purple

Minifig Neckwear Shoulder Armour With Pearl Gold Dragon Pattern

Minifig Neckwear Shoulder Armour With Pearl Gold Dragon Pattern

Dark Blue

Minifig Neckwear Shoulder Armour With Pearl Gold Dragon Pattern

Minifig Neckwear Shoulder Armour With Pearl Gold Dragon Pattern

Bright Green

Energy Effect, Flame, Squiggly

Energy Effect, Flame, Squiggly

Trans-Dark Pink

Weapon Sword, Broad with Trans-Red Blade Pattern

Weapon Sword, Broad with Trans-Red Blade Pattern

Pearl Gold

Creature Body Part, Dragon Head Upper Jaw with Bright Light Yellow Eye, Dark Pink/Blue Markings Print

Creature Body Part, Dragon Head Upper Jaw with Bright Light Yellow Eye, Dark Pink/Blue Markings Print

Dark Blue

Plate Special 1 x 2 with Clip Horizontal on Side

Plate Special 1 x 2 with Clip Horizontal on Side

Black

Brick Curved 2 x 1 No Studs [1/2 Bow]

Brick Curved 2 x 1 No Studs [1/2 Bow]

Dark Purple

Plate Round 4 x 4 with 2 x 2 Round Opening

Plate Round 4 x 4 with 2 x 2 Round Opening

Black

Plate Special 1 x 2 with 5.9mm Centre Side Towball

Plate Special 1 x 2 with 5.9mm Centre Side Towball

Dark Bluish Gray

Plate Special 1 x 2 5.9mm Centre Side Towball Socket

Plate Special 1 x 2 5.9mm Centre Side Towball Socket

Light Bluish Gray

Tile Round 2 x 2 with Bottom Stud Holder

Tile Round 2 x 2 with Bottom Stud Holder

Dark Purple

Brick Curved 2 x 2 x 2/3

Brick Curved 2 x 2 x 2/3

Dark Blue

Brick Curved 2 x 2 x 2/3

Brick Curved 2 x 2 x 2/3

Dark Purple

Plate Special 1 x 1 with Vertical Tooth

Plate Special 1 x 1 with Vertical Tooth

Pearl Gold

Brick Sloped 45° 2 x 1 with 2/3 Cutout [New Version]

Brick Sloped 45° 2 x 1 with 2/3 Cutout [New Version]

Dark Purple

Weapon Sword / Katana / Shamshir with Capped Pommel [Square Guard]

Weapon Sword / Katana / Shamshir with Capped Pommel [Square Guard]

Pearl Gold

Brick 1 x 2 x 3 with Bottom Stud Holder

Brick 1 x 2 x 3 with Bottom Stud Holder

Light Bluish Gray

Plate Special 1 x 2 with End Towball

Plate Special 1 x 2 with End Towball

Dark Bluish Gray

Bar Holder with Hole and Bar Handle

Bar Holder with Hole and Bar Handle

Pearl Gold

Weapon Sword / Saber with Curved Blade and Hilt

Weapon Sword / Saber with Curved Blade and Hilt

Pearl Gold

Tile Round 1 x 1 Quarter

Tile Round 1 x 1 Quarter

Dark Bluish Gray

Tile Round 1 x 1 Quarter

Tile Round 1 x 1 Quarter

Dark Blue

Tassel with 1 x 1 Round Stud

Tassel with 1 x 1 Round Stud

Pearl Gold

Wedge Plate 2 x 2 Cut Corner

Wedge Plate 2 x 2 Cut Corner

Dark Blue

Tile Special 2 x 2 Corner with Cut Corner - Facet

Tile Special 2 x 2 Corner with Cut Corner - Facet

Dark Blue

Wave / Power Blast Rounded Energy with Bar Handle

Wave / Power Blast Rounded Energy with Bar Handle

Trans-Orange

Tile 2 x 2 Curved, Macaroni

Tile 2 x 2 Curved, Macaroni

Dark Purple

Minifig Head [Plain] [Vented Stud - 2 Holes]

Minifig Head [Plain] [Vented Stud - 2 Holes]

Trans-Light Blue

Minifig Head Sora, Coral Eyeshadow and Lips, Gold Markings, Golden Eyes / Angry Grin Print

Minifig Head Sora, Coral Eyeshadow and Lips, Gold Markings, Golden Eyes / Angry Grin Print

Yellow

Minifig Head Wyldfyre, Red Eyebrows, Scar, Angry Teeth Print

Minifig Head Wyldfyre, Red Eyebrows, Scar, Angry Teeth Print

Yellow

Minifig Head Zarkt, Red Eyes, Dark Tan Sharp Teeth, Fangs, Dark Purple Markings, Closed Mouth / Open Mouth

Minifig Head Zarkt, Red Eyes, Dark Tan Sharp Teeth, Fangs, Dark Purple Markings, Closed Mouth / Open Mouth

Black

Bracket 1 x 2 - 1 x 4 [Rounded Corners at Bottom, Square Corners at Top]

Bracket 1 x 2 - 1 x 4 [Rounded Corners at Bottom, Square Corners at Top]

Black

Hinge Plate 1 x 2 Locking with 1 Finger On Top

Hinge Plate 1 x 2 Locking with 1 Finger On Top

Light Bluish Gray

Technic Brick 1 x 2 with Axle Hole Type 1 [+ Opening] and Bottom Pin

Technic Brick 1 x 2 with Axle Hole Type 1 [+ Opening] and Bottom Pin

White

Brick Curved Inverted 2 x 2 x 2/3

Brick Curved Inverted 2 x 2 x 2/3

Dark Bluish Gray

Plate Special 2 x 2 with Only 2 studs

Plate Special 2 x 2 with Only 2 studs

Dark Blue

Weapon Chakram / Hoop Blade / Ring

Weapon Chakram / Hoop Blade / Ring

Pearl Gold

Hips and Legs Under Dress/Robe with Dark Purple Lines/Vines, Gold Chain Print

Hips and Legs Under Dress/Robe with Dark Purple Lines/Vines, Gold Chain Print

Dark Green

Bracket 1 x 1 - 1 x 1

Bracket 1 x 1 - 1 x 1

Dark Blue

Equipment Lantern

Equipment Lantern

Pearl Titanium

Technic Beam 1 x 2 Thin

Technic Beam 1 x 2 Thin

Dark Bluish Gray

Brick Wedged, Curved Inverted 6 x 4

Brick Wedged, Curved Inverted 6 x 4

Dark Purple

Brick Curved 2 x 2 x 2/3 Two Studs and Curved Slope End

Brick Curved 2 x 2 x 2/3 Two Studs and Curved Slope End

White

Brick Special 1 x 1 with Studs on 2 Sides

Brick Special 1 x 1 with Studs on 2 Sides

Dark Bluish Gray

Plate Special 1 x 1 with Tooth

Plate Special 1 x 1 with Tooth

Light Bluish Gray

Brick Curved 3 x 1 No Studs

Brick Curved 3 x 1 No Studs

Dark Purple

Wedge Plate 2 x 4

Wedge Plate 2 x 4

Dark Blue

Animal Body Part, Barb / Claw / Tooth / Talon / Horn, Small

Animal Body Part, Barb / Claw / Tooth / Talon / Horn, Small

Black

Animal Body Part, Barb / Claw / Tooth / Talon / Horn, Small

Animal Body Part, Barb / Claw / Tooth / Talon / Horn, Small

Dark Pink

Technic Ball Joint with Through Axle Hole

Technic Ball Joint with Through Axle Hole

Black

Brick Sloped 30° 1 x 1 x 2/3 (Cheese Slope)

Brick Sloped 30° 1 x 1 x 2/3 (Cheese Slope)

Black

Brick Sloped 30° 1 x 1 x 2/3 (Cheese Slope)

Brick Sloped 30° 1 x 1 x 2/3 (Cheese Slope)

Dark Bluish Gray

Brick Sloped 30° 1 x 1 x 2/3 (Cheese Slope)

Brick Sloped 30° 1 x 1 x 2/3 (Cheese Slope)

Dark Blue

Hinge Cylinder 1 x 2 Locking with 2 Click Fingers and Axle Hole, 7 Teeth

Hinge Cylinder 1 x 2 Locking with 2 Click Fingers and Axle Hole, 7 Teeth

Dark Bluish Gray

Technic Brick Special 2 x 2 with Ball and Axle Hole, with 6 Holes in Ball

Technic Brick Special 2 x 2 with Ball and Axle Hole, with 6 Holes in Ball

Dark Bluish Gray

Plate Round 4 x 4 with Pin Hole

Plate Round 4 x 4 with Pin Hole

Dark Bluish Gray

Plate Special 1 x 1 with Clip Vertical [Thick Open O Clip]

Plate Special 1 x 1 with Clip Vertical [Thick Open O Clip]

Red

Plate Special 1 x 1 with Clip Vertical [Thick Open O Clip]

Plate Special 1 x 1 with Clip Vertical [Thick Open O Clip]

Dark Purple

Technic Pin with Friction Ridges Lengthwise with No Center Slots

Technic Pin with Friction Ridges Lengthwise with No Center Slots

Black

Plate Special 1 x 2 with Clip Horizontal on End

Plate Special 1 x 2 with Clip Horizontal on End

Black

Brick Wedged, Curved 4 x 3 No Studs [Plain]

Brick Wedged, Curved 4 x 3 No Studs [Plain]

Dark Purple

Technic Axle Pin 3L without Friction Ridges and 2L Axle

Technic Axle Pin 3L without Friction Ridges and 2L Axle

Light Bluish Gray

Technic Pin with Friction Ridges Lengthwise and Towball - Round Pin Hole

Technic Pin with Friction Ridges Lengthwise and Towball - Round Pin Hole

Black

Weapon Hilt Symmetric

Weapon Hilt Symmetric

Sand Green

Technic Brick Special 2 x 2 with Ball Socket Wide and Axle Hole, No Arm Holes

Technic Brick Special 2 x 2 with Ball Socket Wide and Axle Hole, No Arm Holes

Black

Hair Swept Back, Tan with Headband Pattern

Hair Swept Back, Tan with Headband Pattern

Bright Green

Launcher, Plate Special 1 x 2 with Mini Blaster Square

Launcher, Plate Special 1 x 2 with Mini Blaster Square

Pearl Gold

Launcher Trigger, Weapon Gun Trigger

Launcher Trigger, Weapon Gun Trigger

Dark Bluish Gray

Technic Brick Special 1 x 2 with Pin Hole and 1 x 2 Plate

Technic Brick Special 1 x 2 with Pin Hole and 1 x 2 Plate

Light Bluish Gray

Bracket 1 x 1 - 1 x 2 Inverted

Bracket 1 x 1 - 1 x 2 Inverted

Black

Bracket 5 x 2 x 1 1/3 with Bottom Stud Holder

Bracket 5 x 2 x 1 1/3 with Bottom Stud Holder

Black

Bracket 1 x 1 - 1 x 2

Bracket 1 x 1 - 1 x 2

Dark Bluish Gray

Plate Angled 2 x 2 with Step and Hole in Center

Plate Angled 2 x 2 with Step and Hole in Center

Dark Bluish Gray

Brick Special 2 x 5 with Slope, Studs on Side

Brick Special 2 x 5 with Slope, Studs on Side

Dark Blue

Animal Body Part / Plant, Tail / Trunk / Tentacle / Tongue / Vine / Tree Branch (Long Tip)

Animal Body Part / Plant, Tail / Trunk / Tentacle / Tongue / Vine / Tree Branch (Long Tip)

Dark Pink

Brick Round Corner 2 x 2 Macaroni with Stud Notch and Reinforced Underside [New Style]

Brick Round Corner 2 x 2 Macaroni with Stud Notch and Reinforced Underside [New Style]

Black

Plate Round 1 x 1 with Open Stud

Plate Round 1 x 1 with Open Stud

Pearl Gold

Plate Round 1 x 1 with Open Stud

Plate Round 1 x 1 with Open Stud

Dark Bluish Gray

Brick Sloped 30° 1 x 2 x 2/3

Brick Sloped 30° 1 x 2 x 2/3

Dark Purple

Chain 6L [5 Links]

Chain 6L [5 Links]

Black

Plate Special 1 x 2 with Angled Handles on Side

Plate Special 1 x 2 with Angled Handles on Side

Pearl Gold

Tile Round 1 x 1

Tile Round 1 x 1

Dark Pink

Tile Round 1 x 1

Tile Round 1 x 1

Dark Tan

Bracket 1 x 2 - 2 x 2 Inverted

Bracket 1 x 2 - 2 x 2 Inverted

Dark Bluish Gray

Tile Special 1 x 2 with Sloped Walls AKA Money / Gold Bar [Ingot]

Tile Special 1 x 2 with Sloped Walls AKA Money / Gold Bar [Ingot]

Black

Bracket 1 x 2 - 1 x 2 Inverted

Bracket 1 x 2 - 1 x 2 Inverted

Dark Tan

Bracket 1 x 2 - 1 x 2

Bracket 1 x 2 - 1 x 2

Dark Blue

Sticker Sheet for Set 71842-1

Sticker Sheet for Set 71842-1

[No Color/Any Color]

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