4 Support corners telescopic hook, firmly lock the phone to prevent shake, never fall. Works with virtually any smartphone, GPS devices. Automatic locking cooperate with one-way prevent back gear, prevent the occurrence of loose during strenuous exercise. This product is directly installed on the Bicycle handlebar, safe and secure. Features - Color: Black. - Material: ABS and PC. - Size: about 13.80X10.50X4.30cm/5.42X4.13X1.69in. - Must tighten the nut on your phone holder once you have finished adjusted to make sure the security of your phone. - 360 degree rotating support holder, can provide you the best viewing. - Angle and hold your phone vertically or sideways firmly and securely - Simply adjust and have your phone to any angle and position that suits your preference and of your cycling on the Bicycle - With non-slips and non-scratch protection pads for your smartphone, can keep your phone on the Bicycle sturdy and stable Package list: 1 bracket