i need some help shipping alot of ball pythons

i have to ship 16 ball pythons, im just concerned on them breathing and being ok if they are all in one box? any suggestions? im not really sure what to do?

What are the sizes of the animals you are shipping?

What size is the box you plan on using??

6 are 1000g-1300g, 1 2500g, 1 1800g, 5 are 300g-500g, 3 are 650g, im really not sure on the size of the box?

You shouldn't be shipping that many different sized animals is one box.

Ship the smallest ones together, the mediums together and the largest ones together.

Multiple boxes...