What Size?

I'm going to be getting at least one BP at the Reptile Super Show on Saturday and I got some containers that are about the size of 15 gallon tanks and I'll be putting the BP(s) in them.

What size holes do you guys think I should put in the container so the BP (I'm going to get a baby) gets enough air but it can't fit through the holes?

Burn holes with a soldering iron, not even baby cornsnakes can get thru that!

yup a regular soldering iron works great

Ok.

Thanks for the help!!!