SUNWAYFOTO 60mm Clamp DDC-60 Arca Compatible DDC60 1/4" inches 3/8 inches Sunway SUNWAYFOTO brand Arca-Swiss compatible Accepts QR's from RRS Wimberley, Jobu, Arca Swiss, Kirk, Markins, etc. All metal construction 3/8"mounting hole and 1/4" adapter Includes bubble level and the accessories pictured