Because children may behave unexpectedly, be sure to use it within the reach of parents and teachers. If you fall down while holding it, you may get injured by hitting your eyes or throat, so be careful. Since it may be accidentally swallowed, especially when used by small children, tie a swallowing prevention string through the hole. Before and after use, be sure to rinse with water, dry and store. Immediately discontinue use if scratches, damage or cracks occur. If you bite it hard, the product may tear and may be swallowed. If swallowed, consult a hospital or doctor near you. Do not use for any purpose other than intended. Be sure to clean or disinfect after each use. After washing, dry and store. When disinfecting in the microwave, use a special container for microwave sterilizing baby bottles and nipples and follow the handling method for the special container. When sterilizing by boiling, add plenty of hot water to a large pan and boil for 2-3 minutes. Please note that excessive boiling will damage the product quickly. When disinfecting with chemicals, please use the disinfectant for baby products. Follow the disinfection method for each disinfectant. Please note that exposing to direct sunlight for a long time or soaking it in fruit juice, etc. may cause deterioration or discoloration. Do not place near a fire. It may cause deformation or damage.