The RED DIGITAL CINEMA Side Ribs for V-RAPTOR is a pair of sturdy, aluminum brackets designed to attach to select RED accessories, rather than to the V-RAPTOR brain. Each rib is equipped with both 1/4"-20 and 3/8"-16 mounting threads, alongside one standard rosette per rib, creating the ultimate mounting setup for production sets. Please note that these side ribs require an attachment method outside of the camera, like the V-RAPTOR Quick Release Platform camera plate, V-RAPTOR Wing Grip, and RED V-RAPTOR Tactical Top Plate, available with a Battery Adapter Plus for V-Lock or Gold Mount.