1. Aluminum alloy metal shell, small and light, strong protection. 2. One cold shoe, three universal 1/4 threaded holes, expanding to connect more equipment, three directions can be photographed, can bring you more fun in life 3. Gear-shaped tight knob, comfortable hand feeling and more flexible adjustment 4. The inner side of the splint is equipped with a thickened silicone anti-slip rubber pad to protect the phone from being pinched. 5. 1/4 screw thread can install other device quickly.