Bella Tunno's Silicone Happy Stacks are the new must-have Montessori toy. Classic stacking cups just got a massive upgrade. This set of 7 square silicone stackers teaches stacking, nesting, counting, and sorting.
Cause and effect
Size: 2.75" x 2.85" x 2.85" (nested)
Age: 0 months+
Happy Sippy Cup