Purdy's most popular roller cover use with all paints and exterior stains, especially where a smooth, lint free finish is desired. White Dove series features a high density woven cover, made of Dralon, a derivative of nylon, which enables the paint to flow freely into and out of the cover for easy rolling and a high quality finish. White Dove covers feature thousands of miniature flagged filaments so paint leaves from thousands of tiny surfaces for a smooth, virtually perfect finish. The high density acrylic fiber is also capable of carrying large quantity of paint, leading to improved efficiency and productivity. Offers perfect finish carries large amounts of paint to the projectDelivers smooth, lint free finishHigh density acrylic woven Dralon coverPick up and release more paint than a standard mini roller