Baby Safe, Necklace is made of 100% silicone. No BPA No phthalates No cadmium No lead or metals. Features: 100% food grade silicone: FDA and CE approved Non-toxic jewelry: BPA free Soft, ideal for gum and emerging teeth Teething toy for curious babies Great sensory tool: help baby focus while nursing Easily cleaned with dish soap & water - dishwasher safe Waterproof, odourless pieces suitable to wear while playing sports or swimming. Heat resistant silicone jewellery will not support the growth of mold or bacteria. Silicone jewellery can be easily cleaned with dish soap & water. Silicone jewellery is a relief for babys teething pain