The HD02 Super Clamp from Ulanzi provides a clamping range from 0.86 to 3.4" to mount onto various surfaces, giving you vantage points for positioning your camera, light, or accessory using the 1/4"-20 screw with ARRI locating pins, or 1/4"-20 and 3/8"-16 thread holes. It has a load capacity of 6.6 lb and features nonslip pads for better grip. Aluminum and steel construction provide durability and allows the HD02 Super Clamp to withstand the outdoor elements.