The LOK wall plugs were initially designed to work with the RPE and PE series of straps, but can also be successfully used with other straps up to 9mm wide. They are intended for fastening in drilled holes in building materials such as concrete, brick, and wood. Installation is done by driving the plug into a hole with a diameter of 7-8mm (depending on the material). The LOK01B plug is intended for soft materials with a diameter of 6mm. LOK5 has a longer head allowing for separation of the cable bundle from the surface of the material. LOK plugs allow for the installation of wires and cables in buildings using straps. Another application is, for example, the fastening of climbing plants.