Keep your bike safe and secure with this durable U-lock. The shear resistant steel shackle ensures maximum protection against theft, while the soft rubber tube cover helps prevent scratches and damage to your bike frame. The high-security M-key locking mechanism provides peace of mind when leaving your bike unattended, and the included three solid brass M-keys ensure you always have a spare. Protect your investment and ride with confidence with this Bike U-Lock.