O.B. Designs flexible and durable Teether Toys are made from 100% Food Grade Silicone. These silicone products are derived from sand and are environmentally friendly, sustainable and reusable. The silicone is FDA approved, non-toxic and odourless. Contains no BPA, latex, lead, or phthalates. Silicone is a great sensory material and is soft on sore gums.