Kodawool Roller, Cover Type Standard, Surface Texture Semi-Rough, Compatible Roller Frame Style Cage, 7 in Overall Length, 1/2 in Nap Size, Surface Material Brick, Concrete, Paint Type Cements, All Paints, Stains, Urethanes, Core Diameter 1 1/2 in, Cover Material Wool, Polyester, Core Material Polypropylene