Using this Bobrick toilet tissue dispenser is easy. First, unlock the tumbler lock with the provided key. Then, open the dispenser and place two standard - core toilet tissue rolls inside. Make sure the rolls fit within the specified size limits. When it comes to the wall installation, ensure the rough wall opening matches the required dimensions. For maintenance, wipe the satin - finish stainless - steel surface regularly with a soft cloth to keep it looking clean. Keep the tumbler lock lubricated to ensure smooth operation. Also, always use the correct key to avoid damaging the lock. And if you notice any issues with the dispenser's holding capacity or the lock, contact customer support right away.