Here's what it contains: the practical DUOPOWER kit case includes a total of 160 pieces in 6 compartments with different sizes: 25 x DUOPOWER 5x25, 40 x DUOPOWER 6x30, 15 x DUOPOWER 8x40, 25 x 4x30 screws, 40 x 4.5x40 screws, 15 x 5.5x5 screws. 00 One dowel for all building materials: as a smart 2-component dowel, the DUOPOWER automatically adapts to the needs of the building material and achieves load values through the three principles of operation: tipping (for perforated building materials), expansion (for solid materials) and knotting (for panels) Performance: when inserting the dowel, the thin edge prevents slipping into the drilling hole; the opening for easy insertion ensures easy positioning and a secure screw guide, an anti-rotation protection prevents the dowel from turning and thanks to the excellent feedback you can immediately feel when in place Areas of application: the powerful dowel is suitable for the installation of light and heavy objects such as paintings, lamps, consoles, light mirror cabinets, wall shelves, bathroom and toilet accessories, as well as kitchen hoods in numerous building materials such as concrete (light), solid and perforated brick, natural stone, full and drilled, drywall, plaster and fibrogypsum board constructions, coffered ceilings and chipboard panels Box contents: Set of 80 duopower wall plugs with screw (total 160 pieces, stop + screws), Manufacturer: Fischer