ROLLER FRAME 4-1/2" JUMBO KOTER RR013 | Works with both 4-1/2 in or 6-1/2 in Jumbo-Koter roller cover and use the same frame for both. Solvent-resistant plastic cage with extra-smooth rolling action. Chrome-plated 1/4 in shank. Full-size polypropylene grip with reinforced threads. Sherlock GT compatible.