The Pre de Provence Tube Roller Key is a nifty little gadget that actually helps you save money. Let's face it, high quality shaving supplies and other hygiene products are typically not cheap. To get good quality, you have to pay for it. That means that you have an impetus to get every last bit out of a package; and to that end, meet the roller key. You don't have to be a mechanical engineer to figure out how this works. You simply attach it to the end of a tube and, as you dispense from it, you roll the device forward, pushing the cream, lotion or whatever else out. When you're done, you'll end up having used every bit of what you paid for and won't waste anything. Obviously, this is a reusable item, so you really only have to buy it once. If you want to make certain that you're getting the most of your money, this is a great way to go. It's worth it to have a few if you like to buy good supplies. Made in France.