This is an excellent tool for 'fine' art work. The pad is only about 1 1/2" long and the discs are about 1/2" in diameter. I didn't notice in the product review or description how small this unit was. i was expecting a much larger device. I guees for the price I should have known.
If you are a woodworker or do arts and crafts and need a small sander, this is the perfect tool for that.