Wooster Jumbo Koter Micro-Fiber medium pile mini roller for a flawless paint finish. MicroFiber has a microfiber and polymer blend to create exceptionally high paint absorbency and release. Medium pile 3/8 Inch (10mm) is ideal for semi-rough surfaces with all paints, glosses, varnishes, enamels, primers and epoxy adhesives. The Thermo-fusion process heat bonds the Microfiber fabric to the inner plastic core, this ensures the fabric does not detach from the core. Compatible with the Wooster Jumbo-Koter roller frames and Purdy Jumbo Roller Frame. Pack contains 2 rollers, dimensions 4.5 Inches wide. Medium pile roller with 3/8 Inch (10mm) pile (Nap) height.