Goktvai 12pcs Replacement Bite Valve for Zak Designs Kelso 15oz, BPA-Free Mouth Piece Silicone Mouthpiece Lid Parts with Cleaning Brush Reusable Straw Cup Accessories Compatible with Zak (Gray)

["Package Contents: You’ll receive 12 quality replacement bite valves and 1 straw cleaning brush, perfect for family use or keeping spares on hand for future replacements.","Safe & Long-Lasting Material: Crafted from BPA-free silicone, these valves are reusable, have no smell, are safe for daily use, and are built to endure frequent biting, washing, and regular wear.","Size Information: The replacement bite valves are about 5.4cm/2.13in length, the width is about 3.7cm/1.46in, and the straw cleaning brush is about 18.2cm/7.16in length.","Quick & Tool-Free Installation: No tools needed-simply remove the worn valve and snap in the new one for upgrade. A convenient and effective solution for busy households.","Perfect Compatibility: Specifically designed for Zak Designs Kelso 15oz water bottles, these bite valves ensure a snug, leak-proof seal for worry-free hydration. Please note that our product is not sponsored or endorsed by, or affiliated with, the brands it fits, including Zak."]