When you buy a 5 pack of Gillette deodorant at COSTCO, you'll notice that upon peeling off the aluminum foil adhesive cover over the holes...you have to spin the wheel more than a dozen times before any of the product appears for use.
Not so when you buy them piece meal at the drug store or Dollar Store.
There is an FDA reg that says the actual weight of the product has to be within a certain percentage of the printed weight on the package. Had to send back 5 cases of Ivory bath soap because it didnt make the weight percentage.