Our eco-friendly mint wooden teether for babies is made of Sustainable Beechwood Timber & Food Grade Silicone. This is the best option over mainstream baby teethers, as they are eco-friendly, non-toxic, and free from harmful leads, metals, BPA, chemicals & phthalates. Silicone is a great sensory material and is soft on sore gums. Beechwood is naturally anti-bacterial, making it a safe teether for babies. As a sustainable baby store, each one of our baby products is made with your baby's best interest at heart.