5 by 3.75-inch sanding pad features an angled nose for sanding tight inside corners Dual-grip design can be held by the handle or by the palm grip depending on user preference Hook-and-loop base pad makes for easy sandpaper removal and installation 2.0 amp-hour lithium-ion battery with onboard LED charge gauge delivers consistent power at any charge level, and is compatible with the entire WEN 20V Max Cordless Power Tool series Includes two 80-grit pieces of sandpaper, a removable dust bag, and a two-year warranty