Cellphone Smartphone Holder to mount your phone on rifle scope to take video or photo when hunting and shooting | It also can be used as a bike phone holder to mount your phone on the handlebar of your bicyle and motorcycle | It fits for riflescope tube and handlebar with diameter 19-33cm and suitable for cell phone with 55-85cm width | With a 1/4" standard screw, it also fits digital camera, action camera or other device with standard 1/4" screw hole | Made of aluminum alloy and environment protection ABS plastic,light weight and durable. The phone clamp comes with silicone pads to absorb shocks to prevent your phone from being scratched