Neewer Black Metal PU-200 Universal Quick Release Plate Fits Arca-Swiss Standard for Tripod Ballhead (PU200 V) 200mm in length quick release plate; 200x38x10 mm; Dual dovetail design, 3/8" center threaded socket ; Precisely engineered, Completely arca swiss compatible; Black anodized, sealing it against corrosion and abrasion; 1 x 1/4"-20 screws ( screws have D-ring and flat head screwdriver slot ), Dual Safety Stop 3mm hex (allen) Screws; Material: Custom made one-piece bracket machined from solid aircraft-grade aluminum;