This Multi Function Super Clamp is a wise choise for your photography studio video equipments. The clamp is quite strong and strudy, can be securely mounted on a lot of tubes pipes or flat surfaces to support your photographic applications. The ergonomic locking handle allows you to lock and unlock easily. A built-in socket holds our 1/4" & 3/8" thread stud steadily, and it can also fit with your other equipments with a 5/8" stud. This spigot is 4.72"(120 mm) long, once fitted in a mafer clamp, it gives 3.66"(93 mm) extension. One end is 5/8"(16 mm) Hex Stud, which can fit in a convi clamp steadily, and the other end is 5/8"(16mm) Baby Pin, perfect for mouting with flash lights, LED lights, strobes, softboxes and other photography studio video camera lighting with baby receiver. Specifications: Material: Aluminum Alloy Net Weight: 2.0 ounce / 57g Length: 4.72" / 120 mm Structure: One end is 5/8"(16 mm) Hex Stud, another end is 5/8"(16 mm) Baby Pin