Jumbo-Koter rollers are made with Wooster branded fabrics to greatly increase capacity and consistently match finishes to our full-size rollers. Their open, 3/4" core makes cleaning easy and refills cost less. Trilingual, color-coded bags have headers for better merchandising. For use only with Jumbo-Koter cage frames. The Wooster Brush Company has been manufacturing innovative, high-performance painting tools right out of Wooster, Ohio USA since 1851. Our trade names include Ultra/Pro, Advantage, Yachtsman, Shortcut paintbrushes; Super/Fab, Super Doo-Z roller covers; Sherlock frames and extension poles; Jumbo-Koter minirollers; and Prep Crew surface prep tools. You can feel confident knowing Wooster is the name behind your painting tools.