Daisy, 505 has two sizes I just ordered 12 CNS half price from Joann's and my total was $163.73 11oz. Can. I have been waiting for a sale (our local store doesn't carry 505) I recieved a e-mail one day special . I was so thrilled/ I think it's the best on the market. Don't worry about shelf life I have a can I've used out of for 5 yrs. no problem. The small is about 11.00 cn.