... can be made4.Any size you want 5.Round type wiring duct 6.Combustion proof and Durable7.tape for permanent stickCable ... -holes designed at the bottom Usage :Home telephone wires ,DGT Wiring,Disaster Prevention ,burglarproof,Monitoring System the wireFeature :Sermicircle design of ... after-sales service ,any questons , contact me freely . Round type wiring duct (with adhesive tape)