Koolehaoda Lengthened Quick Release Plate Double Dual Quick Release Plate Dslr Camera Tripod Mount Bracket Ball Head with Quick Release Plate (PU-380) High quality aluminum alloy is used to ensure a light weight but super high strength support. Allows to set 2 cameras in one tripod. Removable quick-release plate with a safety lock, comes with 1/4" screw, suitable for all SLR cameras; 38 mm wide dovetail clamp plate compatible various professional ball head. Dovetail clamp plate has 3/8 screw holes, can be widely applied to various professional tripods.