Made of Aviation grade aluminum alloy CNC material, compact and portable design, durable and practical in use. 38mm ARCA slot, suitable for 38mm ARCA quick clamp, tripod, etc. V-port quick release slide plate structure, Press down-quickly unlock the camera, safe and stable. Built-in anti-virtual position design, perfect cooperation without sloshing. Equipped with imperial 1/4" ARRI positioning holes, can be used with D3.0mm positioning column to prevent reversal.