Using this dispenser is easy. Just insert 25 cents, and you can get either a sanitary napkin or a tampon. When refilling, open the door using the key for the tumbler locks. Make sure to place the tampons and sanitary napkins in their respective slots. Keep the dispenser clean by wiping the surface regularly with a soft cloth. Avoid using abrasive cleaners as they may damage the No. 4 satin finish. If you notice any issues with the locks or the dispensing mechanism, contact the manufacturer for assistance.