Using this Bobrick B - 543 toilet paper dispenser is easy. First, open the dispenser by loosening the necessary parts. Then, place a standard - sized toilet paper roll with a core size between 3/4' (20mm) and 1 - 1/2' (40mm) inside. Make sure it fits properly. Close the dispenser and you're good to go. When it comes to maintenance, regularly check the set screw in the post to ensure it's tight and still preventing vandalism. Wipe the stainless - steel body with a soft, dry cloth to keep its satin finish looking great. Avoid using abrasive cleaners as they might damage the surface. If you notice any issues with the mounting or the dispenser not holding the roll well, double - check the threaded flange and the mounting plate to make sure they're secure.