The Wooster Jumbo Koter Pro/Doo-Z Mini Rollers are 6.5" in length with a 3/8" nap. The roller sleeves are shed-resistant for the smoothest proessional finish with all paints, enamels, primers and adhesives. The high density white fabric features a Wooster exclusive golden pinstripe. The fabric is very good quality and will stay resistant whilst resist matting. The open 3/4 in. core makes cleaning easy and refills will cost less. Ideal for use with the Wooster Sherlock Mini Roller Frame.