Features: Easy Valve Conversion: The 4pcs Bike Convert Cover for Adaptor enables quick and effortless conversion from Shrader to Presta valves, making it ideal for cyclists who need flexible valve stem grommets for different bikes. Durable & Practical: Made from good-quality materials, these 4pcs Bike Convert for Valve Adapter provide long-lasting performance, ensuring a secure fits for your bicycle accessories and enhancing your cycling experience. Perfect Gift Choice: This American to French Rim Plug Valve Conversion Kit is a thoughtful holiday or birthday gift for cycling enthusiasts, combining practicality with convenience for any bike maintenance needs. Compact & Portable: The Bicycle Wheel Rim Conversion Valve Stem Grommets are lightweight and easy to carry, making them a must-have for on-the-go cyclists who need reliable valve adapters during rides or trips. Intimate Service: We are committed to providing customers with high-grade after-sales service. Whether you have any questions,you can contact us,and we will solve them for you until you are satisfied. Specifications: Material: Plastic Size: 9*7.5mm Note: Due to the screen lighting effect, the actual color of the product may be slightly different. Due to manual measurement, please allow size error. Include: 4*Valve Adapters