Compatibility: Suitable for 12 oz-64 oz wide mouth water bottles, as well as Simple Modern, , , , , and other Incompatible:It is not suitable for , Hydropack, , , , OZARK TRAIL water bottles. Not suitable for standard/narrow mouth water bottles. Safe Material: Made of high-quality PP, free, and will not release any odor that affects the taste of the beverage. You can use it with confidence. Easy to Drink: Simply press the button to easily open, achieving one handed operation, allowing you to enjoy drinking anytime. The spout design provides maximum water flow and can quickly quench thirst, bringing you a convenient hydration experience Colour:Black Material:PP+ 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.