Features:-It uses induction to automatically discharge paper, with an 8cm detection distance. Double-click the button continuously to activate the sensor. Lower your hand near the detection area to automatically discharge paper. As soon as your hand leaves, paper discharge stops. The paper discharge length can be freely controlled according to your needs.-With a visual window, you can easily check the remaining paper capacity and replace it with new paper in time to avoid the embarrassment of suddenly finding that the paper towels are used up.-It is suitable for all kinds of paper with a diameter of 20cm. Most toilet paper brands on the market can be used in it, such as hollow roll paper, solid roll paper, folded paper towels, etc.-Installation is simple, no.