Using your Deltana 2-1/2' Contemporary Solid Brass Floor Door Bumper is easy. Just install it on the floor where the door hits. Make sure it's firmly in place according to the max mount measurement of 17/64'. When using it, keep in mind that it's there to protect your walls and doors, so don't force the door against it too hard. For maintenance, simply wipe it with a soft cloth regularly to keep its shine. Avoid using abrasive cleaners as they may damage the brass finish. With proper use and care, this floor door bumper will serve you well for a long time.