1?��METAL MATERIAL: Super camera clamp mount is made of precise CNC process anodized aluminum material and stainless steel, very durable and sturdy. Lightweight and portable, easy to carry. 2?��THREADED HOLE: You can use it with the accessory kit with 1/4inch?20 or 3/8inch?16 attachment screw, such as magic arm, mini ball head, ball head holder, joint arm, etc. 3?��APPLICABLE THICKNESS: Ball head super clamp has a maximum jaw opening of 55mm/2in and a minimum jaw opening of 15mm/0.6in. you can mount it on cameras, lights, umbrellas, hooks, shelves, plate glass, crossbars, etc. 4?��RUBBER PAD: Ball head crab clamp comes with a rubber pad to prevent your application from slipping and scratching. It is a great tool for clamping things that need to be mounted in your daily life. 5?��EASY TO USE: Camera mount clamp has a net weight of 124g/4oz and a maximum weight load of 0.5?2kg/1?4lb. it is very easy to tighten and loosen when mounting and dismounting.