The Fischer HWK Box Small (Part Number 091524) is a comprehensive and practical assortment box containing 170 DUOPOWER plugs and 170 corresponding screws. Designed for versatility, the DUOPOWER plugs are suitable for both pre-positioned and push-through installations, offering secure functions across solid (expansion), perforated (folding/knotting), and panel building materials (knotting). The innovative two-component material ensures enhanced performance and provides clear feedback when the plug is perfectly seated. Anti-rotation locks prevent unwanted spinning during installation. The durable box, made from high-quality, impact-resistant plastic, is ideal for professional use in workshops and on construction sites.