Made of High quality steel and aluminum alloy, ultralight, durable, rugged, high strength CNC machined aluminum alloy nut, resistant abrasion, durable for long time use Smooth cam action lever,Quality quick release anodised alloy seat clamp skewer 1 pair bike skewers, Front and rear skewers included, 3 color choice Front Skewer: L=115mm, Rear Skewer:Road bike L=146mm & MTB L=151mm；Axle diameter: about 4.5 mm
