ok so i got them today.they shipped very well and all made it.they were shipped in a priority mail box then the box was lined with styrofoam with newspaper inside that then the crayfish were in little breather bags wrapped in newdpaper.they shipped anywhere from 1/2 inch to 1inch.they did however send them in two bags.i'm thinking this is because some were bigger and they didn't want the smaller ones to get eaten by the bigger ones.i hope this helps but if you need more info just let me know.