This filter was designed to fit the side vents of Silverstone TJ09 computer case. The case is made out of aluminium so the filter have the non-ferrous magnetic frame that is applied to the case, included. This case needs two of these filters as both sides have vents.
It can be ordered in any of the color combinations available.
Please see SPECS tab below for dimensions and on Customer photos to see what it looks like on the case.