FEATURE: The purple quick release skewers are made of good quality steel and aluminium alloy, durable, sturdy, high strength.Premium washers, resistant to high temperature and abrasion, durable for long time use. GOOD COMPATIBILITY: Suitable for almost 99% mountain bikes, easy to use and carry, wonderful accessory. SIZE INFORMATION: Front skewer 135mm, rear skewer 170mm, there are 2 different colors available, you can choose by your needs. FUNCTION: Wheels equipped with quick release mechanisms can be removed from the bicycle frame and replaced without using tools, convenient and labor saving to use. ULTRALIGHT: Ultralight than other material made skewers, adding no heaviness to training or long time riding. Specification: Condition: 100% Brand New Item Type: Quick Release Skewers Material: Aluminum alloy + steel Front Skewer: Approx. 100mm / 3.94in Rear Skewer: Approx. 135mm / 5.31in Suitable for almost 99% mountain bikes Package List: 2 x Quick Release Skewers