Paint Roller Cover, Cover Type Standard, Surface Texture Not Applicable, Compatible Roller Frame Style Wire, Yoke, 18 in Overall Length, 13/16 in Nap Size, Surface Material Concrete, Paint Type Epoxy, Urethane, Core Diameter 3/8 in, Cover Material Nylon, Core Material Nylon, For Use With Coatings, Includes 3/8 in Endcaps