The Hamilton Perfection 4' Long Pile Midi Roller Sleeve is made from hard-wearing polyamide, designed for great coverage on rougher surfaces, with the added benefits of excellent paint pick-up and even finish. The roller sleeve fabric is thermobonded to the core to prevent any unwinding, even when soaked in water or solvent. It is suitable for use with emulsion, solvent-based and water-based masonry paints.