But its soft-foam handle and body provide just the right combination of flexibility and rigidity, making it comfortable to hold and maneuver while keeping the sanding surface flat. Its small 1×3” pad reaches into tight corners, and the hook-and-loop sandpaper proved easy to change. I was able to sand up next to a finished vertical surface without marring it. Micro Zip does not offer refill sanding strips, but another kit (with 10 strips each of 80, 120, 220 grit) costs just $10. Or you can buy hook-and-loop sheets from woodworking retailers and cut your own to fit. —Tested by Craig Ruegsegger