Using the Bobrick B - 2740 toilet paper dispenser is easy. First, unlock the dispenser with the special key provided. Then, place two standard - core toilet paper rolls onto the spindles. When you need to use the toilet paper, simply pull it from the dispenser. As for installation, make sure to choose the right method according to your wall type. For particle - board or solid - core partitions, use sheet - metal screws or through - bolts. For hollow - core metal partitions, add a solid backing. For plaster or dry wall, a concealed backing is necessary to meet local building codes. When it comes to maintenance, keep the dispenser clean by wiping it with a soft, damp cloth regularly. If the locking device has any issues, check the key and the retractable pins. Remember to replace the toilet paper rolls in time to ensure continuous use.