SUNWAYFOTO brand Arca-Swiss compatible PC-5DIII L plate for Canon 5D Mark III Camera. Fully compatible with RRS Lever Clamps. Precision CNC machined from solid aircraft-grade aluminum. Mounting screw: 1/4-20″ Dovetail Width: 39mm. Upper Width: 52mm. Weight: 102g. Length 114mm. Height 84mm. Manufactured specifically for the Canon 5D Mark III. Product Features： 1. Precision machined from aircraft-grade aluminium. 2. High quality surface anodizing, solid and durable. 3. Convex edge prevents movement. 4. Strap mount. 5. Includes 2 safety stop screws, 1 x 1/4" screw and allen wrenches.