If you find a place where the walls or posts are 2.7 - 3 meters apart. If the distance is longer, you can use a rope as an extension. - The package includes two anchors, plugs, washers and bolts - Installation requires a (hammer) drill and a 12 mm drill bit The anchors are made of steel and the manufacturer does not recommend using aluminium spring clips with this product: steel can damage the aluminium clips. Installation instructions: Drill a 12 mm thick hole in the concrete with an impact drill, which is the same length as the plug. Screw the bolts with anchors into the plugs, do not overtighten. When attaching to wood, it is important to find wood that is thick and durable enough. Drill a 6 mm thick hole in the wood, which is approximately the length of the bolts. Screw the bolts with anchors tightly. If you need more instructions on the attachment, it is worth turning to a professional. Bolts will not stay in drywall, plywood or chipboard alone. Incorrect fastening may cause p