The Bike-It Mammoth X-Line Cable - 6mm x 1.8m is perfect for use with existing cable or U-Locks.6mm thick strong cableWoven steel constructionDouble loop ended1.8m overall lengthProtective coating for Anti-Cut protectionGreat for extending locksThe Bike-It Mammoth X-Line Cable - 6mm x 1.8m lets you extend your security coverage by adding another 1.8m length to your locks, or for winding through wheels while your U-Lock secures the frame to a lamppost or other immovable object.The cable is 6mm thick and has a woven Steel construction. There is a protective coating which has anti-cut protection, and it is double loop ended.