The eight whimsically colored nesting pieces stack easily from large to small, while also allowing little builders to use their imagination and stack in any order. Little ones can develop hand-eye coordination and color recognition. Its unique design is safe with no center post. Made from 100% recycled plastic, no BPA, phthalates or PVC, meets FDA food contact standards, and it's easy to clean and dishwasher safe. 6+ months.