You must send the payment as a Gift, by checking option "To family or friends" and you must cover the paypal fees, if any. If you don't have "family / friends" option, you will add some amount to the price for covering PayPal fees (exact amount depends on your country as PayPal fees vary).
You must have clear steamrep.com and public profile.
if u have rep 100+ on Steamtrades.com .. i go first :)
5 KEY in stock
1.90 $USD for each key
you must buy minimum of 2 keys
PayPal rules