JK SUPERFAB 4-1/2"X1/2"|Wooster’s Jumbo-Koter SuperFab roller is made of an exclusive golden yellow fabric that resists matting for complete coverage and smoother results. It offers exceptional capacity with all flat or satin paints, stains and sealers. It has an open ¾” core that makes cleaning easier, and fits on any Jumbo-Koter cage.