It looks so simple, yet the kids are drawn to play in it for long periods of time. I have a spoon and containers next to the box and they are often sorting the rocks into sizes as well as texture. Bear also likes to sort “rocks I like and rocks J-jo can have.” J-jo likes to attempt to pour the small ones.
Note: J-jo is always well supervised when he plays with this box. Please be careful if you have toddlers still in the mouthing stage.