Wooster Shergrip Jumbo-Koter Frame. Solvent resistant plastic cage frame with an extra smooth rolling action. For use with both the 4.5 Inch and 6.5 Inch Wooster Jumbo-Koter rollers and Purdy Jumbo Rollers. Chrome plated 0.25 Inch shank and soft green Shergrip handle adds comfort, threaded for extension pole use and compatible with the Sherlock GT pole and all other standard screw fit poles. Short arm 11 inch overall length.