Features： 1、Using TC4 Titanium Material: Titanium alloy has low density, high strength, light weight and good performance. 2、CNC Cutting and Anodizing: The combination of delicate CNC milling and anode coating, strong metal texture and workmanship can show quality. 3、Lightweight and Weight Reduction Design: In order to achieve light weight, lightweight titanium alloy axis is used, and personalized shape is given. 4、Parts Material: Stainless steel fastening springs and copper washers, nuts and handles are all made of aluminum alloy, all using anodizing process, 5、Precautions: Suitable for rims/hubs with an axis distance of 100mm in the front and 135mm at the rear (most disc brakes), other axle distances such as 74mm/130mm (most V brakes and C brakes) cannot be used. Specification： Item Type: Hub Quick Release Lever Weight: Approx.69g/2.4oz Material: Aluminum Alloy Quick Release Handle, Titanium Alloy Rod, Copper, Milling, Stainless Steel Overall Product Size: Front: Approx. 19cm/7.5in, Rear: Approx. 23cm/9.1in Titanium Alloy Rod Size: Front: Approx. 12.5cm/4.9in, Back: Approx. 16.5cm/6.5in Package List： 1 x Pair of Hub Quick Release Lever (Front and Rear)