This 63mm Underground Green Twinwall Ducting System is UK Manufactured With A Robust Corrugated Design Both Inside And Outside Made From A High Density Polyethylene Making It Light Weight And Highly Portable Cutting Installation Times. Its Is Easy To Cut And Join For Placing Through Draw Through. Used For The Protection Of CCTV/FIBRE/TELECOM CABLES. Which Comes In Various Diameters . Manufactured In Accordance With BS EN 50086-2-4:1994 Shipping is £12.50+ vat for ever 5 rolls purchased.