This sanding block is great to have in your sandpaper group. If you have a Random Orbit Sander, you can use it in spots where the sander cannot go. Great quality. Very happy with the sanding block. Highly recommend that you have one if you do a lot of sanding. Well worth the price (best on the market). Also easy to use since it is a hook and loop sanding block. Sand paper sticks to the sanding block very easily and maintains its hold.