Mini-Koter rollers have a core/bearing system that gives the Mini-Koter a more universal fit with most rod-style mini frames. The woven roller fabrics offer excellent product pickup and a very smooth finish. Use for coating tight and narrow spaces where a brush or regular roller won't reach. 3/8 in. nap shed-resistant roller cover smooth to semi-smooth surfaces. Comes in 2 pack and there are 12 to a case.