This is a maintop glass assembly for a range. It is square in shape, with a flat top. The coils/eyes rest underneath the glass surface. The main purpose of this component is to provide support for pots and pans during the cooking process and to transfer heat. A cooktop may need to be replaced if the surface is cracked, chipped, or otherwise damaged. Continuing to use a damaged glass cooktop is dangerous. To replace the maintop glass assembly, first unplug the oven from the wall. For this job, a Phillips head screwdriver is needed to remove the old cooktop and secure the new one. In the event that the old cooktop shattered, make sure to vacuum up any glass shards that might be present.The maintop glass assembly replacement is made specifically for General Electric ranges. It is sold as a single unit, and It is an authentic OEM replacement part that is directly sourced from the manufacturer.