When you air up your tires， is it a headache to get your pump to bite on the end of the presta valve? This Extender is the answer. The extender threads onto the end of your valve to give your pump more surface area to grab.

Main Features:
100% brand new and high quality
Preventing air-leakage， top quality anodized aluminum
Compatable with presta valve stems.
Ultra-light， weight only 3.5g per piece. Easy to installation.
Color available in : Yellow， red， blue， green