Made of thickened SUS304 stainless steel, it is scratch-resistant, corrosion-resistant and oxidation-resistant. The storage surface is very stable and the corners are slightly rounded, so it is extremely practical as a small storage. This one can carry much more than a mobile phone. 2 installation methods: double-sided adhesive, no need to drill holes; the holes are pre-drilled, screw holes can permanently fix the holder to the wall. The construction quality of the toilet paper holder is excellent, really make life better for yourself, it is the best choice.