Mobilization, outdoor, hiking, campers, hunters, biking, football, jogging, running, football.Flip the top cover, drink, and drink with one hand. There is no need to unscrew the straw cap. Made of high-quality materials, it will not affect your taste. No BPA, easy to clean and healthy.Perfect fit: Our standard size straw caps are compatible with Hydro Flask standard size bottles, ID: 12 ounces (about 340.2 grams), 18 ounces (about 510.3 grams), 21 ounces (about 680.4 grams) compatible, compatible with classics Kleen Kanteen water bottle. Possible compatibility: There is a 1.8 inch (about 4.6 cm) screw mouth diameter in the stainless steel bottle. The perfect solution for out-of-office water replenishment needs.Trim the straw to fit your standard saliva bottle; the alloy carabiner is perfect for placing items, suitable for hanging on bags and ropes, etc.colour:BlackMaterial:plasticPackage Contents:1 x Straw lid2 x Brush2 x Straw1 x Alloy Carabiner(Random color, no specified color can be selected)Only 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 +/- 1-3cm.