The Purdy® Marathon™ Roller Sleeve is made with an exclusive blend of nylon and polyester. Designed to withstand wear and tear. Provides a smooth finish and even coverage, even after 40 hours of continual use. Doesn’t leave traces of lint. If consistency is key, this is the sleeve for you. Suitable for all latex and oil based paints. For flat, eggshell and satin finishes. Specifications: Material: Nylon/Polyester knitted cover. Size: 228mm (9in) Pile Height: 19mm (3/4in) Core: 44mm (1.3/4in) .