SmallRig Counterweight Mounting Plate for DJI Ronin-SC BSS2420 is designed to replace the original camera plate that comes with RoninSC, this plate allows you to balance long-lens setups by mounting counterweights behind your camera. The plate incorporates two rows of 1/4"-20 threads for mounting optional Counterweight 2284 (100g) and 2285(200g). The front of the plate features a 1/4"-20 thread that fits the original lens support comes with the Ronin-S gimbal. Millimeter scales on the sides of the mounting plate help ensure precise positioning. The counterweight plate also compatible with the sliding clamp on Ronin-SC quick release camera plate which helps to memory the position when re-balance the camera. The bottom of the plate features light to heavy and lens position marks to make it easy to balance your camera.