Desmond brand DPL-150 : Arca-Swiss compatible QR plate. Dual dovetail design. 150mm (5 7/8") long. 2 x 1/4"-20 screws (screws have both flat head screwdriver slot & 4mm hex socket) All metal (aluminum). Includes 2 x 2.5mm hex safety screws on the underside. Includes 2.5mm and 4mm allen wrenches Weight: 3.4oz (96g)