Each number comes out by lifting it with the knob on top.
This puzzle is self-corrective. The number cutouts will only fit into their respective cavity.
Value Addition: Back of the tray has the numbers printed in random order. Have the child identify the number and place the correct cutout on top of it. Now you know if your child has really learnt his/her numbers!
100% non-toxic and child safe.
Dimension (in mm) : 220x300x8
Material : MDF, Non-toxic Inks, Food-grade Plastic