Kryptonite New York Fahgettaboudit Mini Heavy Duty Bicycle U Lock Bike Lock 18mm hardenedMAX-PERFORMANCE STEEL SHACKLEresists bolt cutters and leverage attacks Oversized, patented*HARDENED STEEL SLEEVEover crossbar for double security DOUBLE DEADBOLTlocking for extensive holding power HIGH SECURITY DISC-STYLE CYLINDER Center keyway defends against leverage attacks Protective vinyl coating SLIDING DUSTCOVERprotects and extends cylinder life 3 STAINLESS STEEL KEYS one lighted with high intensityLED BULB & REPLACEABLE BATTERY Key Safe Program Product dimensions: 3.25 x 6 (8.3cm x 15.3cm) 18mm hardened MAX-Performance steel shackle resists bolt cutters and leverage attacks Oversized, patented*hardened steel sleeve over crossbar for double security Double deadbolt locking for extensive holding power High security disc-style cylinder Center keyway defends against leverage attacks Protective vinyl coating Sliding dustcover protects and extends cylinder life 3 stainless steel keys  one lighted with high intensity LED bulb & replaceable battery Key Safe Program