[H] L4D2 4pack opening [W] 1.5k each / 5k for 4 pack

0.5 k = ToD

4pack opening
price : 1.5 + 4(collateral)

Requirements:

1. you mustn't have the game in your library
2. you must be able to use steam market so the gifts will be tradable.
   failing to so and I can't give your collateral back.