The Burg Wächter 100D DUO U-lock is a heavy duty lock ideal for securing up to 12mm chains and cables. The body of the lock is made of hardened steel and the 16mm shackle is made of case hardened steel, both providing tough resistance to attack. The shackle is secured by a double bolted disk mechanism locking both ends and can be completely detached from the body of the lock when unlocked. The lock is weather resistant and suitable for outdoor use, with a keyhole cover protecting the internals. Keyed Alike - Same Key for Both Locks Sold Secure Diamond Bicycle Sold Secure Gold Motorcycle Strong Disc Locking Mechanism Case Hardened Steel Shackle & Body Protective Rotating Keyhole Cover 16mm Thick & Case Hardened Steel Provides Excellent Strength Against Attacks Rubber Protector Stops Scratches & Marks When Securing Items Keyed Alike; Ideal for Securing Valuables with More Than One Lock with The Ease of One Key Keyed Alike - Same Key for Both Locks Sold Secure Diamond Bicycle Sold Secu...