100% SAFE FOR YOUR BABY - Made with soft and chewable silicone for the comfort and safety of babies. Its materials are FDA approved, BPA-free, toxin-free, dishwasher and freezer safe. SOFT SILICONE MATERIAL - Our teether toys are made of soft and smooth silicone material,it is best for sore gums pain relief. It have the grooves and bumps to gently rub a baby's gums without harming the child's mouth area. Teethers can be ice chill in refrigerator for cooling effect on gums. Metarial : Silicone Soft Free BPA Weight : 0.02 Gram.