Is this enough for a frag or two?

[AnacapaReefs]

Insulated Foam Shipping Kit - 6 x 4 1/2 x 3

Safely ship everything from food to medical supplies. Thick polystyrene foam container provides maximum protection. 200 lb. test outer shipping carton included. Lightweight, sturdy and reusable. Use with cold packs. Not available for sale in WA or NY unless eligible for an exemption under state...

www.uline.com

It’s pretty expensive for 8 cartons- that’s $6 each and I don’t know if it is big enough for a few frags. I’m thinking 3 heads of frogspawn or a small chalice or a few different Zoa frags.
If it isn’t big enough, where do you guys get your cartons for less?

 

[Daddy-o]

7x7x6 Wildlife Shipping Box

Our 7x7x6 Wildlife Shipping Boxes include the 3/4" EPS foam panels and the outer box. Outer box includes the Perishable Handle with Care labeling as well as the required animal labeling. Spaces are included for listing the quantity and species names to meet IATA, State and Federal shipping...

www.reptilebasics.com