Use the 8" ARRI-Style Dovetail Plate from SmallRig with a separately available ARRI-style sliding baseplate to balance your camera rig and to support accessories. The aluminum plate measures 8" in length and features multiple through-slots to make balancing easier while keeping it lightweight.
The plate features safety pins on each end to prevent it from sliding out of a baseplate. It also features both 3/8"-16 and 1/4"-20 threads for mounting on a tripod quick release plate, a cage, or other rig. Four 1/4"-20 screws and an Allen wrench are included.