Zipp designed the Tangente Valve extender to ensure you don't get left on the side of the road because your spare tube's valve is too short to fit your deep section wheels. With a small compact size you can store the valve extender in a saddle bag or an easily accessible location and just forget about it until you need it. Features: 65mm length for use with deep dish wheels Includes two 65mm extenders, and two valve core removing tools Specifications: Color: Black Length: 65mm