Buy ubuntu mate on USB flash or DVD?

How can I buy the ubuntu mate in a flash memory or a dvd? I have looked in https://ubuntu-mate.org/download/amd64/focal/
and could not find any option to buy it.

Found this link if it helps ...

There are several copies on both DVD and USB on Ebay.

Found few links on Google from where you can buy it; Amazon, Ebay, Thelinuxshop, Shoplinuxonline. Try to google it and find the best website considering the shipping price.

`

I finally have bought some copies from ebay. Thank you.