Self-adhesive for scratches: 10m of loop tape and 10m of hook tape. Each roll is 10m long and 20mm wide. The support is coated with a special very strong adhesive. The adhesive reaches its maximum strength after 24 hours. Wait 24 hours before attaching the self-adhesive strips to the object to which they are attached. A permanent and durable fixing solution for homes, classrooms, offices and garages. Suitable for smooth surfaces: Double-sided scratch off stickers are ideal for smooth surfaces such as plastic , glass, tiles, metal, mirrors and smooth wood. Not suitable for use on leather, PU, synthetic leather, heavy fabrics, plush fabrics, brick walls, concrete walls, gravel walls, polymers and oil-based surfaces. Not recommended for use on fabric, soft vinyl or underwater. Superb Adhesion: The self-adhesive backing is very strong and of high quality. It leaves no residue when removed from a smooth surface. Do not expose to heat or sunlight as prolonged exposure will damage the adhesive and leave a residue. Clean and dry the surface before using. No tools required: no hammer, drill, nail or glue required. The self-adhesive tape can be cut to any size you want. Durable hook-and-loop tape is great for long-term organization and decorating tools.