My first question is why have I waited so long to buy this thing? I'm a hack who loves to mess around (killing time) on various wood projects. Well, after spending almost 8 months on a wooden surfboard project, I didn't want to trust the "block sanding" with a piece of belt paper pinned to a block of wood (like last time). I figured you could spend money and get a tool that does the job. It does. Easy to use and I've put it in three different extremes. 3M adhesive paper, standard sheet paper and various types of wet sanding. Attaching the paper is easy, cut, open the clips, fold the paper a little (or make a double edge), pinch one side, tighten the other and pinch. Just Peazy and you will be happy. The photo shows wet sanding with polyester resin and dry sanding with sheet paper.