Features1Product Size: Rear quick release skewer shaft length is about 190mm / 7.48in front quick release skewer shaft length is about 150mm / 5.9in. 2Universal Use: Universal accessory for front and rear bicycle wheels with hollow axles. Suitable for most bicycles (mountain bike and road bike). 3Heavy Duty: The bicycle quick release rod is made of aluminum alloy + steel, which is resistant to high temperature and wear, and is durable. 4Practical Parts: The bicycle front rear skewer can be removed from frame and replaced in a short time, easy to install, no tools required. 5Applicable Skewer Size: Front: Approx. 100mm / 3.94in; Rear: Approx. 135mm / 5.31in (the rear wheel skewer of the bicycle refers to the installation size of the bicycle frame and the rear wheel set (hub).)SpecificationItem Type: Quick Release Bicycle SkewerMaterial: Aluminum Alloy + SteelRear Quick Release Skewer Shaft Length: Approx. 190mm / 7.48inFront Quick Release Skewer Shaft Length: Approx. 150mm / 5.9inSkewer Diameter: Approx. 4.35mm / 0.17inApplicable Skewer Size: Front: Approx. 100mm / 3.94in Rear: Approx. 135mm / 5.31inPackage List2 xQuick Release Bicycle Skewer