1Package Content: You will receive 4pcs replacement stoppers, which specially deigned for Owala FreeSip stainless steel water bottle, sufficient quantity for your daily use or replacement needs, or you can also share with your family or friends. 2Silicone Materials: The replacement silicone stoppers for Owala FreeSip are made of silicone, which is durable and reliable, no BPA, suitable for daily use. 3Practicality: With our replacement stoppers, it will protect your bottle from leaks or dust, making it look like new, bringing you a good use experience. 4Easy to Install: Our replacement stopper is designed for your convenience. Simply insert it into the mouth of your water bottle to secure it in place. The replacement stopper is also easy to remove when it's time to clean your bottle. 5Easy to Clean and Safe to Use: Our silicone stoppers are easy to clean and maintain. Simply rinse it under running water or put it in the dishwasher.