This super high quality clip is made of aluminum alloy and stainless steel. The surface is anodized to improve corrosion and wear resistance. It is durable and well made. The key parts of the clip are equipped with thick non-slip rubber pads, which perfectly protect your accessories from scratches while improving stability. The size adjustment range is between 15mm and 41mm. Anything in this range can be used, such as bicycle handlebars, motorcycle handlebars, sports camera mounts, tripods, selfie sticks, tables and chairs, etc. The red aluminum alloy rotary knob is well designed and easy to operate. The bottom of the Vigorous Clamp has 1/4"-20 and 3/8"-16 threads. You can install various accessories according to your needs, which is very convenient to use. The super clip weighs 68g (2.39oz), can withstand a maximum load of 3kg (6.6lb ) and is compatible with most photographic accessories.