Hello and welcome ! We are creating global classifieds marketplace platform where you can buy and sell goods and services using cryptocurrency. The buyer and the seller make and deal and seller ships the product to the buyer. Both buyer and seller are safe since we use smart contracts, so when buyer sends the coins to seller, seller is aware of that and ships the product ,but the coins are on hold until buyer confirms that the package is received in the condition they agreed on. Buyer then confirms that everything is ok and seller only then receives the coins, so the seller receives the coins at the same as buyer confirms package is alright!