Plan to keep the cards for awhile. I dont feed snakes every three days. So a few shed boxes should be good for the amount of feedings that are on there. ( i didnt do any math, this is just how someone else wanted them so we shall see as i use them... if i use them...) But Eight sheds, for the amount of feedings there are.... might be right.
Figure ill find out at some point if they work out well!