The QRT Release Plate is designed as a spare plate for the AirHed Trinity multi-use vieo head. A Standard 38mm Arca Swiss compatible plate that sits tight to your camera without any movement or drift with the help of the rubber pads. With a milled stainless steel camera screw, the plate is formed from anodised magnesium alloy, include a Stainless Steel 1/4"-20 camera mount screw.