Plate 4 x 4 with Rounded Corners, Pin Holes between Studs

Plate 1 x 1 Plate 1 x 2 Brick Round, Quarter 1 x 1 Bracket 1 x 2 - 2 x 2 Inverted Plate 2 x 4 Brick Sloped 45° 2 x 1 with 2/3 Cutout [New Version] Plate 2 x 2 Corner Tile Special 2 x 2 Corner with Cut Corner - Facet Plate 2 x 3 Brick Sloped 30° 1 x 1 x 2/3 (Cheese Slope) Brick Curved 1 x 2 x 1 2/3 with 1 Cutout Technic Brick 1 x 1 with Pin Hole