SUNWAYFOTO DDY-64iL Long Handle Discal Disc Clamp Arca / RRS Compatible 64mm Sunway This Item Includes: SunwayFoto 64mm (2.51") Discal Clamp with Long Handle - SunwayFoto 6 Year Warranty CNC-machined integral screw-knob clamp Arca-Swiss-compatible Anodized black finish Captive knob