 your regular worms that you dig up in the ground uh... these worms can take the heat you don't have to keep them cool and that's what's kind of unique about them is uh... they can take the heat all the way up to eighty five ninety degrees and it doesn't bother them and so you don't have to keep them cool so uh... we went and we purchased i think at that time they came in two and a half gallon pails about so big and uh...