Sturdy & Secure: The main body of this motorcycle fork stem phone mount is made of PA66+GF30% high-strength material, with built-in high-quality 304 stainless steel telescopic rods. Adopts aluminum alloy double socket arm & fork stem ball base. Providing durability and reliability in the most demanding environments Protect Mobile Phone Holder Design: The double socket arm & fork stem mounting base are equipped with special safety screw. The package comes with a special wrench to tighten the safety screw. This design keeps your phone holder from being easily removed. Note: The anti-theft design is to ensure that the mobile phone mount is not easily removed, not an anti-theft design for mobile phone Anti-shock, Protect Mobile Phone Camera: Equipped with vibration dampener, maximizes absorption of vibrations caused by riding. The fork stem motorcycle phone mount also built-in with soft silicone that keep your phone from scratches and vibration. Phone cradle & phone camera feat