Key Features;Quick-release retaining spring prevents roller slippage, yet allows easy, one-rap removal;Smooth-rolling bearings eliminate shank wear and gray streaks;Durable, green (tm) fiberglass-reinforced nylon cage and endcaps;Chrome plated 5/16 in shank, 90 deg angle;Full-size polypropylene grip with reinforced threads, Sherlock GT (r) compatible;Paint roller frames nylon cage with 4 inch cage and 14-1/2 inch overall length 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 inch shank, 90-degree angle. Full size polypropylene grip with reinforced threads, Sherlock GT Compatible.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 in shank, 90 deg angle. Full-size polypropylene grip with reinforced threads, SHERLOCK GT? (r) Compatible. 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, 90-degree angl e. Full-size polypropylene grip with reinforced threads, Sherlock GT Compatible.