The Bosch EasyCurvSander is a unique design which incorporates three independent 38mm sanding discs for flexibility on curved surfaces as well as flat ones. Suitable for sanding or polishing, it has a variable speed dial to select the optimum speed for the application at hand, and is supplied with a dust extraction adaptor for connecting it up to a vacuum cleaner when sanding wood and wood based materials. Its compact, lightweight form factor and minimal levels of noise and vibration help to ensure comfortable handling, and a Bosch Syneon chip regulates energy use to help you get maximum runtime out of your battery. SpecificationsBattery Voltage: 12vBattery Type: Bosch Green (Garden/DIY) Lithium IonSanding Pad Diameter: 38mm (x3)Max RPM: 1,800 rpmVibration Emission Value ah: 2.5 m/s²Uncertainty K: 1.5 m/s² Features & BenefitsRotating, movable discs adapt to curved, rounded, and flat surfacesElectronic speed preselection enables the perfect speed for the job and