LS-85 85mm Rotating Collar for Canon Nikon Sony DSLR Camera with Battery Grip, Tripod Mount Ring Lens Support Collar Arca Swiss Plate Mount DSLR Horizontal Vertical SwitchingAero space grade aluminum material, elaborately CNC machined with high standard hard anodized finish, making it extremely durable. The QR plate uses Arca swiss dovetail structure, compatible with tripods or ballheads of different brands such as Arca Swiss RRS SIRUI BENRO FOTOPRO MARKINS. Easy Switching between Horizontal and Vertical: Loosen the lock knob and rotate the camera body to certain stop and then tighten the lock knob to switch the camera