The Oven Bake Element is a black, metal part which supplies heat to the oven. This element is 19-1/2" wide x 18-1/2" long and has 3-1/2" inserts. It is rated as "Easy" to install by users, and attaches to the bottom of the oven. If you notice visible damage, or that your oven is not receiving heat properly then it may be a problem with this part. Check your model number and user manual to see if this is the right part for you. It is important for you to disconnect your appliance from the power source before performing this repair. After disconnecting your appliance, remove the two screws/nuts connecting the old element, pull it out, and discard if faulty. Simply connect the new element prongs where the old element fit, and screw it back in. You may need a flashlight when making this repair.