Adjustable plastic clamp 2334019 (set of 50 pieces) is intended to secure banks of electric cables (2 to 5 cables) It is mounted with 2 screws Color: white Material: PP( polypropylene) Installation in wood is done by using wood screws No. 8-10 For installations in concrete, brick, plasterboard, etc, use TP plugs TP0, TP1, TP2 and wood screws, or TPS-5 nail plugs Installation : First secure the small bracket end with a TPS nail plug or a wood screw. When securing horizontal cables on a wall, the bracket must be firmly agains the bottom cable After the bracket has been fixed, slide in the tongue of the clamp until the cables are correctly located. Secure with a TPS nail plug or a screw and cut off any surplus length of tongue