Bostik Blu-Tack Original Reusable Adhesive Putty 45g (30817110) is a moldable and reusable putty that replaces tape, tacks, or staples for attaching lightweight objects to walls, doors, or panels. Simply knead a small amount between your fingers until malleable, mold it, and press it against the surface and the object to be attached. It adheres well to most non-porous surfaces, such as enameled walls, tile, glass, metal, or plastic, and can be removed without leaving marks or residue, and can be reused several times as long as it remains clean. It is suitable for hanging posters, photographs, drawings, or decorations at home, school, or the office, without drilling or damaging the walls.