Package Content: You will receive 3 sets of water bottle gasket replacements, 12 pieces of replacement gaskets in total. Sufficient quantity will meet your needs. (Note: water bottle not included.)
Compatibility: Our replacement gaskets are perfectly compatible with 40 oz Thermoflask water bottles with straw lids and spout tops. Please note that our product is not sponsored or endorsed by, or affiliated with the brands it fits, including ThermoFlask.
Good Sealing: With this O-ring, you don't have to worry about the lid leaking. Soft white silicone holds the lid tightly, making it perfect leak-proof.
Premium Materials: Our replacement gaskets are made of premium BPA-free silicone, no smell, not easy to break, serving you for a long time. Please replace every 4-6 months depending on frequency of use.
Easy to Use: You can easily replace the water bottle. Remove the existing gasket by gently pulling it out. Insert the new gasket tab side up into the cap and flat side down into the spout.