- fischer Duopower 570673 expansion plugs 14x70mm with screw - Intelligent 2-component system that guarantees secure fastening in solid and hollow materials - Automatic adaptation: the plug decides whether to expand, fold or knot depending on the material - Narrow edges and co-rotation lock to prevent slipping and turning during installation - Easy to install, reduce drilling effort and offer high load values - Versatile: ideal for hanging bicycles, pictures, cabinets, TV mounts, shelves and furniture - Compatible with natural stone, concrete, plasterboard, chipboard and other building materials - Recommended for both professionals and DIY enthusiasts