Wooster Pro Cage frame features quick-release spring that prevents roller slippage, yet allows easy, one-rap removal. Smooth-rolling internal bearings eliminate fraying and shank wear. Durable green fiberglass-reinforced nylon cage and endcaps. Chrome-plated 5/16″ shank, 90º angle. Polypropylene grip with reinforced threads, Sherlock GT compatible. Use with your favourite microfiber roller for top notch painting results. It will outlast any wire cage frame!