Description [Perfect Fit]: Made of high quality material, the protective silicone boots are only suitable for wide mouth 32oz (about 907.2g) 40oz (about 1134.0g) water bottle. Straw cap and boot fit perfectly Hydro Flask Wide Mouth 32oz (~907.2g) 40oz (~1134.0g). Replacing lid accessories can upgrade your kettle.[Easy to use]: Wide mouth straw cover with straw and flexible handle, soft and comfortable to handle. Protect your bottle from bumps and dents and extend the life of your water bottle.[Durable Material]: The wide mouth straw cap for water bottle is made of silicone, which can be used for a long time without affecting the taste of the drink. Nonleaching, nontoxic, suitable for all ages.Material:PP+Siliconecolour:BlackPackage Contents:1 x Wide Mouth Straw Lid2 x straws1 x cleaning brush1 x silicone BootOnly the above package content, other products are not included.Note: Light shooting and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is + 13cm.