They are hung without causing damage, are firmly attached and are removed without a trace. Strip type: waterproof. They are easy to fit, with no need for screws, nails or holes. Strips come off cleanly, leaving no holes, marks, or sticky residue. Suitable for most smooth surfaces such as painted walls, tiles and glass. Waterproof strips work in both wet and dry conditions. Perfect for use on tiles to avoid having to drill holes and damage the tile. Holding power: 2.2 kg. Includes: 1 hook and 1 large strap.