SUNWAYFOTO brand Low Profile Head with Arca / RRS Compatible Duo Lever Screw Clamp ^^ Accepts QR's from RRS Wimberley, Jobu, Arca Swiss, Kirk, Markins, etc.
^^ Max load: 40KG/88lb ^^ Clamp Features Both Lever and Screw Knob Releases ^^ Low Center of Gravity ^^ Elliptical Ball for progressive resistance ^^ Height107mm/ 4.2 in. Net Weight 686.7 g/ 1.5 lb ^^
Ball Diameter: 70mm/ 2.8 in,
Base Diameter: 72mm / 2.8 in ^^ 3/8" Socket with 1/4" Bushing Adapter ^^ Includes 3
QR Plates: Arca SP-60, Picatinny NP-60N and MLOK SMP-80.