Okay, the guy's name is Ken Cain and he has a toll free number that you can call anytime which is 1-877-971-2790. He sells 6 for $20 plus $2.25 shipping. Let me tell you that it is the best and easiest thing I've ever used to have perfectly clean and streak free mirrors and glass. Best of all it is 100% guaranteed for 3 years. I think that once you use it you'll never buy another bottle of glass cleaner.Saltydog, post away!