SmallRig 15mm Single Rod Clamp for BMPCC 4K & 6K Cage 2279 is a low-profile rod clamp. It is designed for BMPCC 4K & 6K to mount a follow focus motor. It works with SmallRig cage 2203, CVB2254 and CVB2255, attached to the bottom left corner of the cage by two 1/4 screws. By holding a 15mm rod firmly, follow focus motor like Tilta Nucleus Nano, PD MOVIE and REDROCK can be attached to your camera rig. The rod clamp does not interfere with SmallRig Cable Clamp 2246, HDMI cable or SmallRig Side NATO Handle 2187.