You get a small bottle with maybe a couple ounces of this lotion-reminiscent substance. In short, it's a mix of carnauba wax and teflon. The wax is what holds the teflon in place. For a normal-sized mouse pad, you only need a dime sized amount. During moderate-heavy use, a single coat should be enough for several days. Ideally a bottle should last you a couple months. The only downside is you have to remember to apply it whenever the teflon wears off.