【VERSATILITY】The super clamp is designed to mount onto anything like cameras, lights, umbrellas, hooks, shelves, plate glass, cross bars, even other Super Clamps. It's up to your imagination & inventive ideas. 【ADJUSTABLE JAW】The jaw opens to max about 1.57" (40mm), and minimum 15mm. You can clip it on anything less than 40mm thick and more than 15mm. 【FOR MORE ACCESSORIES】The clamp features 1/4’’ threaded holes and 3/8 threaded hole, which allow you to attach more accessories, such as ballhead 1135, magic arm 2070. 【High-Quality】Made of aluminum alloy and stainless steel, sturdy and durable. 【BETTER PROTECETION】The updated rubber pads on the clamp parts prevent your application from slipping and scratching. 【What You Get】1 x super clamp SMALLRIG Super Clamp with 1/4 and 3/8 Thread for Cameras, Lights, Umbrellas, Hooks, Shelves, Plate Glass, Cross Bars, etc