1.Made of food grade silicone, SGS certified all parts are BPA Free. 2.Thumb type is suitable for the shape of baby’s jaw and teeth. 3.It store hygiene with case, avoid to stains. ●Material Pacifier：Silicone (-20℃~+120℃) Pull ring：Tritan (-20℃~+100℃) Plastic sheet‧Plug‧Case：Polypropylene (-20℃~+100℃)