Lid compatible with Hdyro Flask wide mouth water bottle 12 16 18 20 32 40 oz. Wide mouth lid also fits some branded water bottle,easy to carry with flex strap handle. The flex chug cap works well for outdoor sports, thicken silicone ring to keep better insulation, keep coffee or water cooling for longer time with insulated hydro water bottle. Convenient to flip up the lid and close tightly. Big hole allow the water to pour out fast and drink easily compared with straw lid. Great for outdoor sports, office, indoor and widely use daily. durable reaplcement water bottle lid and accessories for your hydroflask. Lid for better sealing, great reaplcement lid for hydroflasks coffee bottles. Colour:black Material:PP+TPR Package Contents: 2 x Water cup lid Only the above package content, other products are not included. Note: Light reflection 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.