@Chris *****
you get it at your embassy in person or E-visa. it’s the same as a normal single entry, 60 day tourist visa with unlimited entries. It cost a bit more and you need to show more money in the bank. And a travel plan self declaration (doesn’t have to be followed )
It is valid 6 months from date of issue, so you can entre Thailand as many times you like in that 6 months. You can even enter on the day it expire, and get another 90 days (60 + 30 extension) That way you can squeeze close to 9 months out of the same visa.