The CAMVATE 30mm Single Rod Clamp is used for clamping onto the top handlebar of the DJI Ronin M & Freely MOVI Pro Stabilizers. it is integrated with an ARRI Rosette mounting adapter with central M6 female thread for attaching other Rosette accessories with M6 male thread screw. It is compatible with all rods from 29.9mm to 30.5mm.