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 with a 90 degree angle Full size polypropylene grip with reinforced threads, compatible with Wooster Sherlock GT no twist poles, Weight: 0.71 pounds, Manufacturer: Wooster Brush