Features:Aluminum base for exact flatness and long lasting durabilitySpring loaded paper clamps secure all types of paperSealed rocker switch resists wearSoft grip handle120V, 60HzNo-load speed 12000 OPMBase size is 4 inch x 4-5/16 inchOrbital diameter: 1/16 inchWeight: 3.3 lbs. What's In The Box:Rockwell RC4151 Shop Series 2 Amp 1/4-Sheet Palm Sander10 foot cordDust boxDust extraction adapter(3) sandpaper sheetsPunch