- fischer Duopower Expansion Anchors 8x40 mm with screw, model 570613, pack of 8 units - Intelligent 2-component system that adapts to any construction material - Automatic expansion, folding, or knotting depending on the base: maximum versatility - Strong and secure fastening on walls and ceilings, both in solid and hollow materials - Perfect for hanging bicycles, pictures, cabinets, TV mounts, shelves, and furniture - Narrow rim prevents slipping in the drill and co-rotation lock to avoid spinning - Reduced drilling effort and high load values - Includes durable plastic box for organizing and transporting the anchors - Suitable for professionals and DIY enthusiasts