Next, decide on the length and quantity of your wallbars. Elfa Wallbars are the vertical bars which hang from the top track into which you click the brackets, (followed by the shelves and so on). The great thing about this system is that gravity does all the work - these do not need screwing into the wall which spares a lot of drilling and also makes it so much easier to move them around.
Click here to buy the top track from which these hang
Click here to view a video assembly tutorial