Using this Bobrick B - 685 toilet paper dispenser is a breeze. First, unlock the support - arm flanges to open the dispenser. Then, place a toilet paper roll with a diameter of up to 5 1/2' (140mm) on the chrome - plated plastic spindle. Close the dispenser and lock the support - arm flanges. When it comes to maintenance, wipe the bright - polished stainless - steel surface regularly with a soft cloth to keep it looking shiny. Avoid using abrasive cleaners as they can damage the finish. Also, make sure to replace the toilet paper roll when it's running low to ensure continuous supply. And always check the lock mechanism periodically to ensure it's working properly.