Features: voltage:110v/60hz or 220v/50hz input power:360 W Speed: 2400 r/min Disc diameter:225mm(8.875 Inch) Length:1575mm(62 inch) Finish walls and ceilings 3 to 4 time faster than with conventional methods. Light weight easy to handle, Operator can sand 10'ceilings without using stilts or a scaffold, Motor is located on the opposite end of the handle from the sanding head for best balance and control, Patented foam-backed abrasive sanding pads virtually eliminate skirl marks, Articulating sanding head enables operator to sand from top to bottom of a wall or ceiling without changing position, Brush-type skirt surrounds the sanding pad, Preventing pad from gouging wall joint, Powerful motor features serviceable brushes.