Key Features;Buff-colored 100% natural lambs wool is knitted into a synthetic backing for consistent quality;Green double-thick polypropylene core resists water, solvents and cracking;Paint roller covers lambswool lambswool 9 inch length nap size 1/2 inch for semi rough surfaces. Buff-colored 100-percent natural lambswool. Knitted into a synthetic backing for consistent quality. Applies stains, waterproofing, and all flat or satin paints, including latex. Green double-thick polypropylene core resists water, solvents, and cracking.Buff-colored 100% natural lambs wool. Knitted into a synthetic backing for consistent quality. Applies stains, waterproofing and all flat or satin paints, including latex. Green double-thick polypropylene core resists water, solvents and cracking. Buff-colored 100-percent natural lambswool. Knitted into a synthetic backing for consistent quality. Applies stains, waterproofing, and all flat or satin paints, including latex. Green double-thick polypropylene core resists water, solvents, and cracking.