These rugged aluminium beauties offer superb price-to-quality value. The 27-mm. Reduced Diameter Grip (RDG) C-Shape offers integrated RDM-mast adapter, slick double-pin adjustment and quality nylon forged head and tail sections for pure durability and comfort. With precision-engineered bend curves for maximum strength against deflection and distortion, they shift aluminium booms into a category that rivals all but our ultimate-spec carbon booms for resilience. Characteristics Tube diameter 27mm Double-Pin Adjustment Loop to loop outhaul C-Shape Integrated RDM mast adapter