Radius RAD Mount Top Bracket with Thumbwheel -- Top swivel arm bracket for all styles of RAD mounts with thumbwheel screw attached. This is the central piece to the RAD mounts that all other main components attach to (isolation hoops, boom adaptor or pistol grip handle).

Radius RAD Mount Replacement 360 XLR Holder -- Removable from RAD mount boom adaptor. Unique design only works with RAD Mount boom adaptors. Snugly holds the XLR stem with a thumbwheel screw to tightly lock in place.