To open the doors and recover the pieces inside the box, children must choose the right key to match the lock.
A very clever feature is the transparent back part of the box, which makes it possible to see the pieces falling and shows the number and type of blocks placed.
The convenient magnetic key ring fits around the wrist to prevent key loss.
Comes with 6 blocks (1 yellow triangle, 2 blue round pieces, 3 red squares) and 3 plastic keys.
Suitable for children from 18 months.