Using this ASI 0040 toilet paper dispenser is super easy. First, find a suitable hard surface like a wall in your restroom and mount the dispenser following the included instructions. Then, insert two jumbo rolls of toilet paper with up to 9 inches in diameter. You can use the roll adapter for inner cores of 2 - 1/4 inches. You can easily see how much paper is left through the viewing slots. To get the paper, just open the door. The sliding panel at the bottom keeps one roll accessible at a time. For security, lock the door with the tumbler lock. When it comes to maintenance, simply wipe the dispenser with a soft cloth regularly to keep its satin finish looking great. Avoid using abrasive cleaners as they may damage the stainless - steel surface. Also, make sure to refill the rolls when the paper level gets low to ensure continuous use.