Are there phthalates in this rattle toys? Yes, phthalate-free. It's safe for your baby. How to clean this product? Silicone part can be sterilized with boiling water. plastic products can be washed with water and vinegar Is this product a safe material for babies to teeth on? The chewing and teething baby toys are made of food-grade silicone&BPA-free plastic. Polished smooth edges, Burr-free and strong enough to withstand chewing and large enough to avoid choking hazards. Any chance that these can be used in the bath tub or kiddie pool? These sensory baby rattle teether can be used in the bath tub or kiddie pool.