You will use your referral link not mine. You go to those links, enter your bitcoin address and your referral link will be generated, which you can use then to promote the products.

With each sale that you do for us, on your referral link, you gain 40% comissions.

You can earn 100% comission if you sell your own products, but you dont, you sell mine and my friend's, so you get 40% comission.