Black & Decker MS2000 Multi Sander with Smart Select for $29.97 shipped. Here is a screenshot for your reference. It features 2 Amp motor, SmartSelect Dial helps selecting the right sanding base while automatically adjusting speed for optimal results, Dust-sealed on/off switch . Lock-on switch, Tool-free base, Hook-and-loop sandpaper system, and filtered dust canister. Most places have it for about $48.