Nylon Paint Roller Description: woven Nylon fabric, thermofused to the core; superb paint pick-up and release Use with oil-base or water-base paints for interior or exterior application Specification: Lint free Polypropylene Core Available In Size:6”,7”, 9”,10”,11” Diameter Core: 1½”(38mm) and1¾”(44mm) http://www.cohwabrush.com/professional-paint-roller/nylon-paint-roller.html