Goktvai 18pcs Replacement Bite Valve for Zak Designs Kelso 15oz, Silicone Bite Valve with Cleaning Brush BPA-Free Reusable Straw Cup Accessories Compatible with Zak Water Bottles

["Package Includes: You will receive 18 replacement bite valves in 6 colors ( gray, blue, orange, green, red, rose red), along with 2 cleaning brushes. This set provides plenty of valves for long term use, sharing, or keeping your straw cup in perfect condition.","Premium Material: These bite valve replacements are made from soft, durable silicone that's gentle on teeth, safe for daily use, resistant to wear, and easy to clean, perfect for both children and adults.","Compatibility: Specifically engineered for Zak Designs Kelso 15oz water bottles, ensuring a secure and leak resistant fit every time. Please note that our product is not sponsored or endorsed by, or affiliated with, the brands it fits, including Zak.","Restore & Prolong Cup Life: Instantly stop leaks and restore full functionality by replacing worn, cracked, or damaged bite valves.","Quick & Easy Installation: No tools needed. Simply remove the old valve and snap the new one into place. The included cleaning brush makes maintenance effortless, helping to keep your valves and in top condition."]