SUNWAYFOTO PC-6D QR Plate for Canon EOS 6D Camera Arca Compatible Sunway PC-6D QR plate for Canon 6D Image plane mark Precision CNC machined from solid aircraft-grade aluminum. SUNWAYFOTO brand Arca-Swiss compatible 5. Includes 2 safety stop screws, 1 x 1/4" screw and 2 allen wrenches.