Using nonstick coated roller covers will make your painting project easier and faster with better results. Unique surface of these rollers will allow you to paint 30% faster. Paint sticks to the wall, not to the roller. Roller cover cleans fast with quick rinsing. Use with all paints. Fits on standard 9" roller frame. High-density knit fabric on 3/8" nap and larger. Woven fabric on 1/4" nap.