Premium Material: These tire valve cores are made of high-quality brass, ensuring reliability, safety, durability, and practicality. They help prevent leaks in your tires. Practical Tools: The valve cores provide a precise fit for Presta valve stems. The included removal tool allows for easy installation or removal of the valve core. Valve core caps help protect the cores from dirt and damage. Easy to Install: Remove the old valve core, insert the new one, tighten securely, and replace the cap. This valve core set is suitable for tubeless road bikes and bicycles. Color: As shown in photo Material: Copper + aluminum alloy + plastic Package Contents: 10 x valve cores 2 x valve core removal tools 10 x plastic valve core caps Note: Only the items listed above are included; other accessories are not included. Note: Slight color variations may occur due to lighting and screen display differences. These variations do not affect product performance. Measurement error allowance: +/- 1-3 cm.