Do not expose to extreme heat. Do not boil, steam sterilize, microwave or place in dishwasher. Do not attempt to refill gel inside Soothing Ring Teether. All teethers wear out with normal use. Inspect the entire product before each use for signs of tears, cracks or leaks. Never leave child unattended while using this product. Discontinue use and replace product at first sign of weakness or damage.