SUNWAYFOTO brand Arca-Swiss compatible.DDC-60 60mm Clamp.Very versatile Jaw opening range of 37.25mm to 41.5mm will accommodate any Arca style plate from various makers including:Really right stuff (RRS), Wimberley, Jobu Design, Arca Swiss, Kirk Enterprises,Markins, etc. 3/8"mounting hole and 1/4" adapter. Can be usedon virtually any head, tripod or monopod.Or remove your existing clamp and replace it using the 6mm hex screw provided.Will fit many brands of ball heads & Gimbals including Arca-swiss, Jobu, RRS etc.Use included Metric 6 flat head screw to mount onto a ballhead.All Metal knob, no rubber or plastic, for long term durability. Length: 60mm. Width: 53mm. Height: 15mm. Weight: 112g.3/8" Standard thread will fit on any standard tripod or head.1/4" brass bushing adapter (included) converts it to 1/4" thread.All metal construction. Includes bubble level, push button safety lock, and the accessories pictured.Compatible with all Arca Swiss plates