This DEMCiflex 5 piece filter kit is specifically designed for a Corsair Obsidian 250D case. The plastic, magnetic air filters are perfect for helping to keep your PC dust-free and are easy to remove without tools to clean and reuse. This custom kit consists of 1 x front, 1 x side, 1 x rear top, 1 x rear bottom as well as 1 x PSU filter.