Using this Bobrick B - 2890 toilet paper dispenser is easy. First, unlock it with the key that also works for other washroom accessories. Then, place your desired toilet paper roll on the spindle. If you have a 2 - 1/8' diameter core roll, add the provided rubber o - rings to the inner spindle. When the paper runs low, you can see through the slot to know it's time to refill. For maintenance, simply wipe the satin - finish stainless steel body with a soft cloth regularly to keep it looking great. Avoid using abrasive cleaners as they may damage the finish. Keep the dispenser in a dry environment to prevent rusting. Make sure the lock functions properly by periodically checking its operation.