Multi functional sander which is perfect for all types of detail sanding. Reaches tight spaces normal sander can"t reach.The kit comes with two interchangeable bases and includes a finger sanding attachment for sanding in tight spaces normal sander can"treach. Uses standard paper sizes from the most popular machines. Specs: Power input 1.5 Amp, no-load speed 12000 opm, base plate size 5-1/4" x 5-1/4" x 3 11/16", sanding sheet size same a Black and Decker Mouse sanders, orbit diameter 1/16", machine weight 2.4 lbs.