Object Permanence Box with 2 Balls building_boards The set can also be

The set can also be use together with the Wooden Grimm's Style Rainbow Stacker

5"_ 11pcs Wooden Building Boards (Two colors themes available: colorful rainbow or pastel)

Grain pattern

loudness or softness

Object Permanence Box with 2 Balls building_boards The set can also beHand made Montessori Object Permanence Box with two balls, for baby from 8 months+ This developmental toy is for baby who can sitting up well. All you have to do is help your baby or let him her drop the wooden ball into the hole at the top of the box and watch it rolls down the ramp and comes out to the tray. This allowing the little one experience object permanence by seeing that the ball did not disappear, it is still there. Box's dimensions: 11"L