The Body Of The Bottle Is Made Of Environmentally Friendly And Durable Pp Material, Which Offers Extra Strength And Will Not Be Broken Even After Many Drops. It Can Withstand Repeated High Temperature Disinfection. The Food Grade Soft Silicone Spout Is Bpa-Free, Non-Toxic, And Bite-Resistant, Which Can Help The Baby'S Gum Development. The Detachable Straw Is Designed With A Duckbill Hinged Cap To Effectively Prevent Leakage Or Overflow. Simple Structure, Convenient Disassembly And Assembly; Ultra-Wide Collar Design Is Easy To Clean.