Wagner 0530004 Battery Powered Smart Flow Paint Roller, 9" x 3/8" NapThe Smart Flow Roller saves you time and effort because it is faster than a traditional roller with less mess and provides an even finish from beginning to end. The roller's ergonomic design will reach ceilings and hard to reach places to get the job done without back bending trips to the paint tray. Quick touch control for smooth continuous paint flow Handle with built in paint reservoir holds up to 22 fluid oz to paint up to 70 square ft in one fill