QUALITY MATERIAL: The bike skewer is made of high quality iron and aluminum alloy, sturdy and non-deformable, high strength and durable. Wide Application: Convenient and labor-saving quick release front and rear hub is suitable for most Bicycles with 26 inch wheels, e.g. Such as road bike, mountain bike, MTB, etc. HIGH PERFORMANCE: High quality washers, resistant to high temperature and abrasion, durable. Bicycle hub works perfectly for optimal performance and maximum safety and durability. ULTRA LIGHT BIKE WHEEL HUB - The bike quick release is ultra light than other material skewers and does not add weight or long time riding. Simple to use: Wheels with quick release can be removed from the bicycle frame and replaced without tools. Length: approx. Front spike - 15 cm; rear mandrel - 18cm. Product Features: 1. The front rear hub of the quick release is made of high quality iron and aluminum alloy, durable, strong and high strength. 2. Ultra light than other material skewers that dont do training or long time driving. High quality washers, resistant to high temperature and abrasion, durable. 3. Wheels equipped with quick release mechanisms can be removed from the bike frame and replaced without using tools. This is convenient and labor-saving. Front wheel short QR fit. Long QR fit for rear wheel Excellent workmanship, CNC machined smooth cam lever, quick release with seat clamp and convenient parts for your bikes. Easy to use The quick release is with a smooth cam lever and an extruded CNC machined aluminum nut. The bike quick release skewer set can be used for front and rear spike. It is a necessary bike for bike repair, especially for MTB lovers. Weight: Ultra light than other materials made skewers that dont make training or long time riding Size : Short Bicycle spike for the front wheel, size 15 cm. Long QR fit for the rear wheel, size 18 cm.