The RMSAMPS1420 Small 4-Hole AMPS Mount is part of Arkon's Robust Mount Series and is compatible with all cameras with the standard 1/4''-20 camera pattern, including those from Nikon, Sony, Samsung, Canon, Fujifilm, Olympus, Panasonic, and Pentax. This package includes only the Heavy-Duty Small 4-Hole AMPS Mount with 1/4''-20 Mounting Bolt Head. The mount measures 4'' and is ideal for tight areas where a smaller pedestal is beneficial. It can be drilled into solid, flat surfaces, such as walls, tables, and workbenches using the 4-Hole AMPS pattern. The AMPS pattern consists of four holes located in a rectangular pattern spaced at 30.17mm x 38.05mm (measured as the center-to-center distance between holes). This tough, low-vibration mount pedestal shaft measures 2.75" high and is made of a combination of plastic and glass fiber. To install the camera, simply screw the camera's 1/4''-20 mounting pattern onto the mount's 1/4''-20 mounting bolt and position the mount and camera as needed by loosening or tightening the side adjustment knob. The arm of the pedestal swivels on both the top and the bottom, providing 360-degree rotation and the ultimate flexibility in positioning the camera at any angle.