The maximum load of the toilet paper / paper towel holder is 1 kg. It will peel off after 1 year without overloading. Waterproof and rustproof, carbon steel material: The paper holder is made of rustproof carbon steel. And its exterior is coated with safety waterproof paint. Of course, the material is safe, non-toxic and BPA-free. Reminder: Please make sure not to overload when using the paper holder. Make sure to install it on a smooth object free of any dust before installation. Multiple Installation Options: Vertical or horizontal (left or right), the paper towel roll holder is ideal for installation under the sink or on the side of the cabinet (on a cabinet door, under a cabinet), making it the perfect accessory to replace the countertop holder and perfectly save space. Installation Tips: If there are oil drops on the walls of your kitchen, please clean them before installation. If the ambient temperature is too high or the surface of the object is rough, it may fall more easily.