SMALLRIG Quick Release Plate Clamp for Arca Swiss Dovetail Clamp for Camera Support Camera Accessory - 1711 SmallRig Dovetail Clamp 1711 for Arca Swiss standard plate is a CNC machined aluminum clamp that is compatible with Arca Swiss quick release plates. It is engineered with safety stop relief grooves that prevent your camera from accidentally falling. It is a component of SmallRig15mm Rail Rod Support System Baseplate 1687(Search "SmallRig 1687"), and can be attached via the 1/4"-20 thread. Fits for Arca Swiss standard plate.