Using this Bosch oven lampholder glass cover is easy. Just unscrew the old cover from the lampholder and screw this new one on. Make sure it's tightened properly. When using, keep it away from sharp objects to avoid scratches or cracks. Also, don't expose it to extremely high temperatures other than normal oven use. For maintenance, clean it regularly with a soft, damp cloth. If there are stubborn stains, you can use a mild detergent. After cleaning, dry it thoroughly before putting it back on the oven. If you have any questions about using or maintaining this product, feel free to contact us.