Designed to soothe tender gums. Use and care: Wash before first and each use in warm, soapy water and rinse thoroughly. Cool in refrigerator. This teether is made of durable material and filled with safety-tested gel. Warning! -Do not boil, steam sterilize, microwave sterilize or clean in dishwasher. This could result in damage. Cool only in a domestic refrigerator. Do not place in the freezer compartment. Do not expose to extreme heat. Inspect the product thoroughly before each use for signs of tears, cracks or leaks and test the security of each teether by tugging firmly before giving to baby. All teethers wear out with normal use. Discard and replace product at first sign of damage or weakness. Avoid using sharp or abrasive material when cleaning. Do not attempt to refill gel into the teether. This product is not to be used by older children or adults as they could bite through the teether. Always use this product under adult supervision.