SmallRig 5365 Arca-Type Mount Plate Kit with 15mm Dual Rod ClampAt the top, the mount plate features a built-in Arca-Swiss interface and comes with an Arca quick release plate for rapid assembly and disassembly. The flip-lever locking mechanism ensures effortless operation. The locking lever is also adjustable for enhanced compatibility with most Arca-Swiss quick release plates on the market.The base of the mount plate is equipped with both 1/4""-20 and 3/8""-16 threaded holes, providing secure stability when used with Manfrotto quick release plates by tightening with two screws.Packaging includes:Mount Plate Kit