The SmallRig 2280 Quick Release Clamp and Plate ( Arca-type Compatible) is a dedicated kit designed for mirrorless and DSLR cameras. Attach the QR plate to SmallRig cage or camera tripod socket, drop it into the clamp and tighten the knob screw. There are multiple 1/4’’-20, 3/8’’-16 threaded holes and thorough holes on the bottom of the base plate so it can be attached to the tripods or other platforms.