Flange kits are designed to permit the use of grid (NEMA G) fixtures in ceilings requiring flanges, and can be used with any grid troffer or flat panel from 1X4, 2X2, to 2X4. A flange kit is suitable for individual and continuous row applications. Their side and end rails are extruded aluminum and finished in a baked while polyester coating so that they are durable and visually appealing. The corner clips are zinc-plated steel and slide into slots provided in side and end rails to ensure that you have the perfect fit.