Description The bite valve used for a long time will have invisible bacteria or impurities that are not cleaned. The simple way is to replace the dirty bite valve. Our products will be your good choice. Made of silicone material, durable and easy to replace. Features -Color:White -Material:Silicone - Size: 4.00X3.00X3.00cm/1.57X1.18X1.18in -Our valves replacements for filter water bottle have the same performance as the original one. -Made of silicone material, it is durable and practical for use, at the same time, it is easy to install and remove. -A good replacement for water bottle, use it to replace the broken or dirty one. -It is designed to replace the mouthpiece valves every 3-6 months to keep your bottle at a clean and hygienic condition. -Food grade silicone, safe and BPA free and can be sterilized in water steam or boiling water.Package list: 4 x water bottle mouthpiece replacement parts Note: 1. Please allow 1-3 mm error due to manual measurement and 1-3g weight error make sure you don't mind before ordering. 2. Due to the lighting of the photos and the difference of monitors, the pictures may not reflect the actual color of the real item. Please make sure you don't mind before ordering, thank you! About Shipping: 1.please pay attention to your delivery address such as: name, street, house number, doorbell/email without name, etc. is correct, or the order will not be delivered correctly. 2.All items will be shipped within 3 business days after the payment is received. Most times you will receive them within 8-12 days then. The specific delivery time is depend on circumstances. 3.During the shopping process, if you have any questions, please feel free to consult us, we will reply you within 24 hours Hope you have a pleasant shopping experience!