Wooster Sherlock Roller Frame is a Quick release spring prevents roller slippage yet allows easy one rap removal. Smooth rolling internal bearings eliminate shank wear and gray streaks. Durable green fiberglass reinforced nylon cage and endcaps. Chrome plated 5/16" shank with a 90° angle. Full size polypropylene grip with reinforced threads, compatible with Wooster Sherlock GT no twist poles.