Each code allows you to get the Metadev Barraza skin. It works on any platform except iOS.
In order to use it launch the game, open the store and then click the "redeem code" button. It can only be redeemed once.
You will get the code both in an eBay message and an email as soon as we see that you bought it (less than 12 hours, can even do it in few minutes if online).
Feel free to contact us if you have any doubts. We would also appreciate you leaving feedback after the purchase.
You can also visit our old account feedback page: https://www.ebay.com/str/calamarket#tab2