- Size: The valve length is 44 mm (1.7 inches) with a shaft diameter of 6 mm (0.24 inches). Each package includes 2 tubeless valve stems in sleek black. - Material: Crafted from an ultra-lightweight aluminum alloy, these tubeless valves undergo an anodizing process to reduce weight, prevent rust, and enhance durability. The vibrant spray finish offers a range of eye-catching colors, adding style to your bike. - Features: Our tubeless tire valve stems are designed with CNC integration for superior airtightness, effectively preventing leaks and ensuring a worry-free ride. The innovative large 4-hole design at the base increases the exhaust area, boosting pump efficiency by 50%. Lightweight and portable, they are easy to carry and store. - Application: Available in 3 sizes and 7 colors, these tubeless valve stems are compatible with all types of bicycles, including road bikes, mountain bikes, folding bikes, and electric bikes. Perfect for cyclists looking to upgrade their valve system for better performance and aesthetics. - Practical Use Cases: 1. Replace old or rusted valves on your mountain bike for improved reliability on rough terrains. 2. Enhance the look and functionality of your road bike with these stylish and efficient tubeless valves. 3. Ideal for electric bike enthusiasts seeking lightweight and durable components for optimal performance.