60mm Quick Release Clamp Arca Adapter PU60 Quick Release Plate M6 Screw For Arca Benro Sunwayfoto RRS Kirk Markins Tripod Ball Head Overall length:90mm, Height: 15mm, Diameter: 60mm,Weight: 96g; Jaw opening range of 37mm to 42mm will accommodate any Arca style plate (Really right stuff (RRS), Wimberley, Jobu Design, Arca Swiss, Kirk Enterprises,Markins, etc.); All-metal materials, CNC precision machining, surface oxidation treatment Built-in three spirit level and precision ruler With the female thread of UNC 3/8" standard