Helps to reduce towel usage and decrease operational expenses. Dispenser is wall mounted (hardware included). Clear window helps you easily view how much paper is left. Auto transfer system feeds stub roll until out of towel to minimize waste. Engineered to work with J Series hardwound towel for the best performance with dispenser. Universal key works with all dispensers in the J Series so janitors only need to carry one key around. Intuitive, color coded components for easy replenishment.