Fully compatible: perfect for Hydro tankers or Kanteen 355 ml, 59.1 ml and 24 ounce standard water bottles.Top quality you can trust: Made from materials that are free of bisphenol A, it will never affect your drink.Meet all your needs: With our 3 covers, you can change the lid to suit your situation.Straw lid for Hydro Flask 12 18 21 24 ounce water bottleBite valve lid for Hydro Flask 12 18 21 24 ounce water bottleSport twist lid for Hydro Flask standard mouth water bottleBest Valve Hydro Flask water bottle replacement lids combo.Colour:blackMaterial:PP+ASPackage Contents:6 * cap2 * straw brush2 * straw2 * Carabiner (random colors,Do not accept designation)Only the above package content, other products are not included.Note: Light 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.