Replacement Pack for Middle School

Notable parts

• 3 parts appear in only a few other sets: Plate Round Corners 4 x 4 x 2/3 Circle with Reduced Knobs (Dark Blue) ×2 — also in 45622 Science Kit Year 7-9 (all Educational and Dacta); Brick Curved 6 x 1 (Dark Turquoise) ×4 — also in 45621 Science Kit Year 4-6, 45622 Science Kit Year 7-9 (all Educational and Dacta); Plate Round Corners 4 x 4 x 2/3 Circle with 2 x 2 Opening (White) ×2 — also in 45622 Science Kit Year 7-9, 21357 Disney Pixar Luxo Jr., 11377 The Lord of the Rings: Minas Tirith.
• 3 parts are otherwise only found in Educational and Dacta sets: Plate Special 2 x 2 with Rubber Foot (Black) ×6; Wheel Smooth 24 x 14mm with Pin Hole (Black) ×2; Torso, Bright Light Orange Arms, Bright Light Orange Hands [Plain] (Bright Light Orange).
• 2 moulds first came out in 2025, including in this set: Plate Special 2 x 2 with Rubber Foot ×6; Wheel Smooth 24 x 14mm with Pin Hole ×2.
• 7 existing moulds first came out in their colour in 2025, including in this set: Cone 1 x 1 [Top Groove] (Bright Light Orange) ×12; Cone 1 x 1 [Top Groove] (Dark Turquoise) ×12; Brick 2 x 2 x 3 (Medium Nougat) ×4; Brick Curved 6 x 1 (Dark Turquoise) ×4; Plate Round Corners 4 x 4 x 2/3 Circle with 2 x 2 Opening (White) ×2; and 2 more.

Calculated from Rebrickable’s public set inventories, excluding sticker sheets and spare parts.