Using this seat - cover dispenser is easy. Just open the door, load up to 500 toilet seat covers inside, and close it. The flush lock will keep it secure. When someone needs a seat cover, they can simply take one from the dispenser. As for maintenance, you can clean the exterior with a mild soap and a soft cloth to keep the matte black finish looking great. Be careful not to use abrasive cleaners as they may scratch the surface. Also, make sure to check the dispenser regularly and refill the seat covers when they're running low. Keep in mind the specified wall opening size when installing it to ensure a proper fit.