Using the ASI 6459 Waste Receptacle is easy. Just push the self - closing door at the front to throw your trash in. When it comes to installation, make sure to have a rough opening with the right dimensions (12 - 3/4 inches wide, 26 - 1/2 inches high, and 4 - 1/4 inches deep). The key provided is for opening the tumbler lock, so keep it in a safe place. As for maintenance, regularly clean the stainless - steel surfaces with a mild cleaner to keep it looking good. Avoid using abrasive materials that could scratch the surface. If you notice any issues with the hinge or the lock, contact the manufacturer for assistance.