Stack & Fit Cups



These bright and durable stacking cups are meant to inspire your little one’s imagination and encourage free play. Use them in the tub to see how much water each can hold or use them in the play room to create a towering building. 


  • Ages 1 and up
  • Blue, yellow, white, and red
  • 3.5 in x 3.5 in (largest cup)
  • Adheres to ASTM and EN-71 standards; made without PVC, BPA, or phthalates


Trained as an architect, Lisa Mahar discovered a way to merge her career and family life when she launched Kid O after her first child turned one. Now she creates simple but beautifully crafted toys that encourage children to explore their own creativity and build confidence in themselves.

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