Wooster Brush R750-9 Super/Fab Roller Cover, 1/2-Inch Nap, 6-Pack , 9-Inch Proprietary golden yellow fabric provides exceptional capacity with all flat or satin paints stains and waterproofing Resists matting for complete coverage and smoother results Green double-thick polypropylene core resists water solvents and cracking Contractor 6-pack in a cardboard wrap sleeve and great for an endcap or stack-out For semi-smooth surfaces