Using this toilet paper dispenser is easy. Just insert two toilet paper rolls into the dispenser. The dispenser is designed to hold rolls up to 5 1/4' in diameter. When the bottom roll runs out, the extra roll will drop into place on its own. For security, use the flush tumbler lock. As for maintenance, keep the satin-finish stainless steel clean with a mild cleaner to maintain its look. Check the heavy - duty spindles regularly to ensure they are in good condition and can resist theft. Make sure the wall opening dimensions match the specified 6 1/4' W, 11 1/4' H, and 3 1/4' min depth when installing.