Whizz Polyester Knit Fabric Roller Cover is designed for superior performance with all paints and stains, ing excellent pick-up and release for a smooth application. This polyester roller cover provides maximum durability and is for use on semi-rough to rough surfaces, making it i for stucco, decks, and masonry projects. Each pack includes two rollers, each measuring 6-1/2 inches in length with a 1/2 inch nap size. Featuring a mini plastic core, this versatile roller cover is suitable for both interior and exterior use, ensuring reliable results on a variety of surfaces. Model Number: 44218