Pro CalGro Injection Molded Nursery Pot 1 Gallon, 20-Pack

What are the actual dimensions of each pot? Obviously a round 1 gallon pot can't be 13"x14"x70"

Are these bpa free? which type (injection mold or thermoformed) would be best for veggie gardening on the patio?

How tall are these? The photo says 8.1 but the discription says 7

How many pots are 1 galon? and what are the actual measurements of those pots?