How it works
You can create a new offer on your own terms. This type called the "offer".
Or you can choose from the list of offers (which has been created by other members of the system). This type called the "offsetting offe".
Each one has advantages and disadvantages:
The exchange will be made on your own terms. You can set the rate and amount yourself.
If the terms of exchange will be unprofitable for other members of the system, it could not be done.
The creator of the offer is waiting for you and get start in the closet future.
The terms of exchange can be unprofitable for you.
The procedure of buying and selling WebMoney with the withdrawal to the Bank card you can see below. Other exchange directions are similar.