The first squishy, smooshy, squeezy building system! Jelly Blox is a patent-pending, unique, and imaginative building system. Featuring soft, safe, sensory play for endless hours of engaging fun! The higher you go, the jigglier things get! Safety tested: Jelly Blox are made of FDA-approved food-grade material and are 100% free of BPA - polycarbonates and PVC – Phthalates. Easy to clean: simply wash with gentle soap and water.