Quick and easy processing. Robust material protects against mechanical stress. Thermoplastic inner adhesive provides protection against external influences and strain relief. Advantageous shrinkage rate for a wide range of applications. Also available on request with air valves for compressed air monitored telecommunication cable systems. Helashrink end caps are used for sealing cable ends outdoors and indoors and are suitable for all common plastic insulated cables with a mains voltage of 0.6/1 kV. 1616-1-B5W2-PO-X-BK 30.