I order from Big Cheese Rodents and they send vaccum sealed bags of 50 mice until you get to the big ones. So to defray shipping costs you can order a bag of fuzzies, a bag of hoppers, small adults and so on. Unless you open they bag they should keep for a loooooong time. However, I guess for one snake eating 1 fuzzy a week, a bag of 50 would last a long time. LOL