These Stacking Silicone Cups will make play time, and bath time so much fun! Stack them, sort them, and learn with them. These squishy silicone cups can be taken just about anywhere! Cleaning and storage: Hand wash with warm soapy water for cleaning. These silicone stacking cups from Poppy+Clover are 100% Food Grade Silicone - 100% Non-toxic, tasteless and odourless - BPA Free - Lead Free - PVC Free - Mercury Free - Phthalates Free - Cadmium Free FDA Approved, CPSIA and CPSC Compliant.