PRO GEX 185-LI Random orbit sanders | Ideally positioned 18V battery for well-balanced sanding and no more arm fatigue, Efficient brushless motor with consistent removal rate and a max run time 40 mins with GBA 4Ah battery, Ergonomic design with low vibration up to 2.2 m/s2 for comfortable sanding, Ideal for sanding wood, wood materials, or plaster and removing paint