Perfect Compatibility: This water bottle cap is specifically suitable for insulated stainless steel water bottles, compatible with Owala Free Sip 16oz 24oz 32oz 40oz water bottles and 25oz Clear Tritan plastic water bottles.Warm Tips: Our caps are only suitable for 16/24/32/40oz stainless steel water bottles and 25oz clear Tritan plastic water bottles, not for any other brands or sizes. please confirm before purchasing.High-quality Materials: Our water bottle caps are made of high-quality plastic, durable, sturdy and BPA-free. dishwasher safe, suitable for long-term use. It meets the needs of your daily life.Practicality: The one-touch water bottle cap prevents foreign objects from entering the water bottle, keeping the water clean and leak-free. Simple operation will give you a good experience.Replacement for old caps: The original bottle caps will inevitably wear and age after long-term use, resulting in loss of normal function and affecting the appearance. this water bottle cap is a perfect replacement to make your water bottle look brand new!