We sort of invented this to combat the hot weather shipping. We had eggs that didn't travel well regardless our endless effort for shipping to other parts of the country. Cold pack goes out in a day or two but this thing seems work pretty well. We have ship eggs out of the country (7 days) and eggs survived and hatched. Price is per box(1), you can order as many as 6 for the same shipping price. It's perfect for bantam to medium size egg, foam is 7x7x6, two (for 12 eggs) will stack nicely in small priority 7x7x6 box. We can also add an additional hole so you can sent extra, just let us know. Thank you so much for looking. If no one bid on it, this will give you an idea, either way, we are happy to share.