The compatibility of this spare cover - Suitable for 2.28 inches wide mouth bottles. This mouth cover is perfect for 12, 16, 18, 20, 32, 40 and 64 oz water bottles, as well as Bubba, Simple Modern, Iron Flask, Thermoflask, BJPKPK, Hydro Cell, Koodee and other wide -mouth water bottles. IMPORTANT NOTE: Cover, TAL, Hydro Flask Growler Series, Hydropeak, Manna, Yete, Nalgene, Ozark Trail are not suitable for water bottles. It is not suitable for standard/narrow -mouth water bottles. Easy to drink and transport - the buttoned buttoned lid is designed for easy, one -hand drinking experience. The Chug-Lid design opens by pressing a button for high fluid flow and one-hand drinking. Developed flexible stalk and mouth - improved practical handle, ergonomic stylish design, three fingers can be easily removed and pulled, it greatly reduces the pressure in the fingers, it is easy to transport. Developed bright and smooth mouth brings the most comfortable touch to your lips on each beverage and specially designed silicone gasket is easily removed and cleaned, while it is wider and thick to provide sealing. BPA - moisturizing solutions - improved PP material, BPA does not contain, children can use without worrying about the taste of the drink. You don't have to worry about the damage of your child's cover because the ly raised fall -resistant material accidentally dropped the kettle while playing. Better - if you have any problems or problems, please feel to us. We will answer your message within 10 minutes during business hours