The Kupo Universal Double Pipe Clamp is constructed from a solid aluminum round plate on the top and a 2" couplers on the bottom that designed to fit any mounting equipment with 3/8" holes spaced every 2" on a 2" pipe, making it an ideal choice for a wide range of applications for your customized camera set up. With the included stainless steel 3/8"-16 screw set, you can easily fix any mounting equipment with 3/8" holes spaced every 2", such as industry-standard cheese plates. Additionally, the coupler features two speed wing nuts that ensure a collision-free installation, even when the wing nuts are close to each other.