Precision engineered all ball bearing construction for reduced vibration and noise, large clamping lever for quick and easy paper installation, through the pad dust collection system, conveniently located on/off switch, rubber sealed switch, contoured, rubberized palm grip. Specs: 120V, no load OPM 14,000, 4-1/2"x4" pad size, abrasive paper size is 4-1/2"x5-1/2", vibration (m/s2) 4.0, 5-1/8"Lx4-3/8"Wx5-9/16"H, weight 2.5 lbs. Includes: (1 each) abrasive Paper #60, #100, #150, dust bag, punch plate.