Disappointed. I bought them for two purposes: 1) wet sanding headlights and 2) sanding paint off a truck grille. Both use sandpaper that sucks! With wet sanding, you can see how the film begins to detach from the sandpaper and the grit quickly disappears. I still managed to polish the headlights, but I can't use sandpaper once. Then when I scraped the paint off the grid I used 30 pieces of sandpaper. The dirt would be washed off immediately! Not to mention, sandpaper coats your hands in a thick gray dust that's difficult to wash off even with soap. I used a soft drywall sanding block which worked wonders for this material. Not to mention I got it in a box scattered around the room outside of a cheap plastic bag and everything was rolled up so it's hard to tell what the grit is.
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