This PU100 Slide-In Quick Release Plate has a 1/4"-20 thread and is a spare or replacement part for B-1, B-2, & B-3 Ballheads and other Arca-Swiss compatible Quick Release clamps.
Safe Screw installed in both side to prevent drop of camera by accident.
Universal designed Arca-Swiss Standard, compatible with RRS, Kirk, Wimberley, Markins, Sunwayfoto, Benro, Suri, Fotopro... brands with AS stardard ballhead.
Built with excellent materials, offering outstanding quality.