Whew - almost got fooled thinking this was the electric file and a set of belts. Since the local non-chain hardware store sells the belts for about 89 cents each, I can’t see this is much of a deal. Of course 3M products at big chain stores are always sold for top dollar, but $18 dollars is IMHO just total greed on the part of the manufacturer.
I didn’t see any of this brand cheaper via Google. This is a 10pk box.