Although there are quite a few sanding blocks on the market, they are generally ho-hum; this is a very good one.

The hardwood body fits naturally in the palm of your hand without the need for a 'death grip'. The felt-covered steel sole is flat but forgiving. Best of all, the four spring tips in the base automatically tension the sandpaper as you tighten the brass thumbscrew down.

With a 3" x 4" base, it efficiently uses exactly 1/6th of a sheet of sandpaper.