First choice for value and performance in a production cover, excellent paint pickup and release. Made in America quality, use with all paints (flat, eggshell, and satin). Green double-thick polypropylene core resists water, solvents, and cracking. Length: 18 In. Nap Size: 3/8 In. Surfaces: Semi-Smooth Core Type: Standard, Polypropylene Material: Knit Interior/Exterior: Interior/Exterior