Kryptonite Keeper U Lock 4 x 8 Inch Heavy Duty Bicycle Lock with Key, Black - Includes 4-Foot Security Cable and Mounting Bracket for Bike, Motorcycle, Scooter Protection | Secure Parking, Commuting, Urban Cycling

This lock features a hardened steel shackle that resists hand tools for security in low crime areas.

• 2 keys - high security, disc-style cylinder
• Patented Anti-Rotation Double Deadbolt shackle helps fight against twist and cut attacks
• Includes click style transportation bracket
• Protective vinyl covering