Secret Boxes

Notable parts

• 1 part comes in a colour no other set has for that mould: Technic Connector 2 x 2 with 1 x 1 Cut-Out with Axle Holes (White).
• 2 parts appear in only a few other sets: Tile 1 x 1 with Black Cat print (Bright Pink) ×4 — also in 41901 Funky Animals Bracelet (all DOTS); Plate Special, Book 10 x 12 with Key Hole (Dark Turquoise) ×2 — also in 41811 Hogwarts Desktop Kit (all DOTS).
• 3 parts are otherwise only found in DOTS sets: Tile Remover Key, Heart [DOTS] (Dark Azure) ×2; Sorting Tray, DOTS, 7 Compartment (Medium Azure); Sorting Tray, DOTS, Lid (Trans-Clear).
• 3 moulds first came out in 2021, including in this set: Plate Special, Book 10 x 12 with Key Hole ×2; Tile Remover Key, Heart [DOTS] ×2; Technic Connector 2 x 2 with 1 x 1 Cut-Out with Axle Holes.

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