[Toriki]

Standard trade: This is the "normal" trade where one side add in items/gold, the other side accept, then the Original Sender accept again to finalize the trade.

Send items immediately: This is where you input items/gold and click "send". Then the recipient will only need to accept once and the trade is done.

Cash on delivery: This is the trade that DEMAND the gold. You input the amount in the gold you EXPECT to receive from the one who receive the trade from you. The recipient then enter the amount of gold that was input by you and send you that gold.