GUImags are pretty much what the name would suggest: magnets used to design graphical user interfaces (GUI). Above you can see some of the controls that we frequently encounter when working with computers and software. These are meant to be moved around, written on, erased and allow for quick changes during the development of user interfaces.

From working in this area and constantly drawing and redrawing these components I definitely think it is a good idea. Not sold on the $98.00 price tag, when you could get the same result with $10 of supplies at Office Depot.