THIS IS REALLY USEFUL FOR : LOCKING YOUR HELMET WITH YOUR BIKE,LOCKING YOUR CYCLE OR MOTOR CYCLE TYRE.YOUR GAS CYLINDER IF IT IS OUTDOOR.YOUR MOTOR,WATER METER ,GEN-SET,ANY EXTERNAL OUTDOOR EXPENSIVE EQUIPMENTS.GATES,GRILLS & DOUBLE WINDOW DOORS.EVEN YOUR BABY PRAMS ETC.MANY OTHER USAGE ALSO CAN BE DONE