Simply use a trusted escrow from the list below:
https://bitcointalk.org/index.php?topic=2439910.0

How escrow works:
1- Seller must deposit the amount to the escrow bitcoin address (witch you'll get once you contact anyone from the list above).
2- Buyer sends the goods.
3- Seller confirm receiving the goods and than escrow release bitcoins to the buyer .
That's all!