Using this ASI 0042 toilet paper dispenser is easy. First, open the door with the provided key. If you're using a roll with a 2 - 1/4 inches diameter inner core, you can directly place it inside. For rolls with a 1 - 5/8 inches diameter core, remove the 'O' ring adapter from the interior before placing the roll. When you need toilet paper, just pull it down towards the stainless - steel teeth at the bottom, and it will tear off easily. Remember to keep the key in a safe place to prevent unauthorized access. For maintenance, wipe the dispenser regularly with a soft, damp cloth to keep its satin finish looking great. Avoid using abrasive cleaners as they might scratch the stainless steel. Check the viewing slot often to know when it's time to refill the toilet paper.