Technic Connector Beam 3 x 3

Technic Pin without Friction Ridges Lengthwise Tile Round 2 x 2 with Black Circle, White Circles / Eye Print Technic Axle 2 Notched Cone 1 x 1 [Top Groove] Technic Pin with Friction Ridges Lengthwise with No Center Slots Technic Axle 3 Plate Special 2 x 2 with Rubber Foot Technic Brick 2 x 4 with 4 Pin Holes, 2 Pins Plate Special 1 x 2 with Three Teeth [Tri-Tooth] Tile Special Round 2 x 2 with Hole Technic Gear 20 Tooth Double Bevel with Axle Hole Type 1 [+ Opening] Technic Axle Pin 3L with Friction Ridges Lengthwise and 2L Axle