Temperature question & box question

I've got some shipping questions, I have 2 2010 hatchlings I gotta send out next week...is it ok to put both in a standard 12x9x6 box?

My next question is temp related...we wanted to ship out Tuesday for Wed delivery so I looked at weather.com to get a feel for the predicated temps next week

My temps on Tue are Hi-61 / Low-55 and Wed are Hi-59 / Low-31

His area temps are Tue Hi-53 / Low-25 and Wed Hi-35 / Low-24

Those are no good to ship in are they?? Or would 2 heat packs make it okay to ship then??

Thanks!!

One heat pack is all you need for those temps.

But with beings 2 snakes will be in a smaller box a heat pack on the Lid and side will be plenty to keep them warm through the trips.

Or you can make it pick up at hub for customer to minimize truck time.