A. It is compatible with wide - mouth water bottles of 12 ounces, 16 ounces, 18 ounces, 20 ounces, 32 ounces, 40 ounces, and 64 ounces. B. You can rotate the cap to drink water without removing it. C. The spout is designed with a screw cap, which provides a good sealing effect and no leakage when tightened. D. This replacement wide - mouth drinking cap comes with a flexible ring handle, which is soft and easy to grip. E. It is suitable for use in the gym, office, during travel, or at school. F. Color: Black G. Material: Polypropylene (PP) H. Package contents: 2 water bottle caps I. Only the above package contents are included, and no other products are provided. J. Note: Light reflection and different monitors may cause slight differences between the color of the item in the picture and the actual product. The measurement error is within plus or minus 1 - 3 centimeters.