Using this dispenser is easy. First, make sure it's securely mounted on a hard wall surface. When it's time to restock, open the door using the key for the tumbler locks. Put tampons in one slot and sanitary napkins in the other, or double up on the product you prefer. For usage, users just need to insert 25 cents to get the product they need. As for maintenance, wipe the dispenser regularly with a soft, damp cloth to keep the No. 4 satin finish looking good. Avoid using abrasive cleaners as they may damage the stainless steel. If you notice any issues with the locks or the dispensing mechanism, contact the manufacturer for assistance.