What Our Gearhead(R) Experts Are Saying:"I keep the TACO - Skin Sander in my chalk bag pouch and use it after long sessions to knock down hot spots before they turn into flappers. The curved edges get into spots a flat sanding block always missed on my fingertips."Rough, torn up skin has a way of ending a good climbing trip early, and the Crux TACO - Skin Sander gives us a way to stay ahead of it. We run it over a callus building up on a fingertip after a long day at the crag, smoothing the rough edge down before it turns into a crack or a flapper mid route. The curved and flat plane design reaches spots a basic sanding block would miss, from the pads of the fingers to the edges of the palm. Since only the sandpaper needs replacing, the TACO - Skin Sander sticks around season after season instead of turning into another piece of gear to replace.