The Fischer universal plug is a versatile solution made from high-quality nylon. The plug holds in concrete, as well as in aerated concrete, masonry, and drywall and gypsum fiberboards. In these building materials, the plug knots securely. The integrated flange is practical, preventing the plug from slipping into the drill hole during installation. The packaging also includes white, nylon-coated angle hooks, saving you the hassle of searching and ensuring they fit perfectly with the plug. With the Fischer universal plug UX and angle hooks, you can securely attach items such as pictures, shelves, and wall cabinets.