Function: Robust and safe: High strength stainless steel, 4 media on the clip, which can guarantee that the phone is firmly fixed on the bike. Prevent vibrations: The anti-vibration silicone tube on the handlebars. The locknut must be hardened, which determines the thickness of the bike. Under road conditions, lift the anti-vibration handle. Installation: Loosen the universal seal, insert the universal seal into the base frame and tighten the nut. Loosen the nut, choose the thickness of the rubber cushion according to the size of the steering wheel, then install the steering wheel. Press the unlock button on the back of the phone holder, then extend the bike bracket horizontally in the radial direction. After configuring the phone, set the dial to the desired corner of the phone screen, and then press the lock button. Product settings: Weight: 177 grams size: 115 * 58 * 12mm Color: Black Material: Stainless Steel + ABS + Rubber Compatibility: Suitable for mobile phones from 4 to 7