Description Bite valve for water bottle is made of silicone material, very safe, softer and flexible, and wear resistant, practical design, can serve for a longer time. There are enough quantity to meet your daily life using and replacing needs, and also nice gifts for friends, and others. Features -Color:As Shown -Material:Silicone -Size:3.80X2.80X2.80cm/1.49X1.10X1.10in - Wide compatibility, water bottle mouthpieces can replace bite valve of various of water bottles. - Water bottle mouthpieces are convenient and practical, replace them to make your water bottle look new. - Made of safe silicone material, bite valve replacements are safe and practical to use, can be applied for a longer time - Bite valves are easy to install, simple installation steps make it easy for you to complete the replacement. - These bite valve replacement mouthpiece are good replacements, keep your bottle at a clean and hygienic condition. The water bottle replacement are perfect for water bottle, have the same performance as the original one. Made of silicone material, ensuring your health and safety for drinking with these water bottle mouthpieces. Simple design, easy to use, the mouthpieces is a good replacement for water bottle valves, easy to install. Simple installation steps, easy for you to replace the old bite valve of your water bottle with new one. Bite valve replacement, enough quantity for you to store or share with your family, partners.