Wooster Jumbo-Koter Super DOO-Z Woven Fabric Roller Cover features a shed-resistant white fabric designed to provide a virtually lint- finish with all paints and enamels. Its open 3/4 inch core allows for easy cleaning and more refills. This roller cover is compatible with any of the Jumbo-Koter cage frames, making it versatile for various painting projects. Measuring 4-1/2 inches in length with a 3/8 inch nap size, it is i for smooth surfaces. Made with a polypropylene core and white woven fabric, this roller cover is suitable for both interior and exterior use. It comes packaged in a bag with a quantity of two. Model Number: RR313-4 1/2