DDH-05 58mm Fluid Panning Clamp Very versatile Jaw opening range of 37.25 mm to 41.5 mm will accommodate any Arca style plate from various makers including: Really right stuff (RRS), Wimberley, Arca Swiss, Kirk Enterprises, Markins, etc. Super Smooth Panning 360deg. panning movement with calibrated precision, precisely capture overlapping panoramic images. Panning Base is laser-engraved with index marks from 0-360deg., with increments at 5deg. Will fit many brands of ball heads including Arca-swiss, Bogen, Gitzo, RRS etc.