Shur-Line 55506N Premium Select 3/8-Inch Semi-Smooth Roller Cover, 3-Pack Standard diameter 30-Percent faster project speed and easy clean up 3/8 inch nap Enhanced coverage Easy to clean Faster project speed-paint sticks to the wall not to the roller High density knit fabric 30% faster project time Enhanced coverage Easy to clean Faster project speed-paint sticks to the wall not to the roller High density knit fabric Teflon fabric protector