This Mul-T-Lock key will have a blue (or possibly black) plastic head.
In order to cut the key we require the seven digit key code that is embossed on the plastic key card that was supplied with the lock when new.
Examples of the format of correct key numbers are 1216216 or 12E4131.
Basically whatever seven digit number is down on the lower right hand portion of your card will be your unique key number.
PLEASE NOTE: We strongly advise you to have these keys posted to a different address to where the lock is fitted.