Features:Metal materials?? CNC precision machining?? surface oxidation treatment.The Panoramic Panning Clamp allows you to properly stitch a set of panoramic images.Standard 3/8" threads?? can be directly mounted on 3/8 thread of devices?? such as monopod.The scale for horizontal rotation has 0-360??.Fast loading base with antiskid lock function.With gradienter and scale plate?? convenient for use.With 1/4" conversion adapter?? 1/4" screw?? spanners.Jaw can be opened from 37mm to 42mm?? it will accommodate any Arca style plate such as?? RRS?? Wimberley?? Jobu Design?? Arca Swiss?? Kirk Enterprises?? Markins?? etc.Specifications:Material: MetalColor: BlackItem size: 6.5 * 3.5cm / 2.5 * 1.4inPackage size: 13.5 * 9.5 * 4.5cm / 5.3 * 3.7 * 1.8inPackage weight: 300g / 10.6ozPackage List:1 * Clamp for Quick Release Plate1 * 1/4" Conversion Thread2 * M6 Screws1 * M4 Spanner1 * M6 Spanner