This is a key for a Cheney lock. Cheney locks usually have the number on the barrel and it is duplicated on the keys itself so hopefully you will have no trouble identifying the key you require. We have only key number 30 in stock but if you don't need number 30, give us a call (01494 775577) and we will try to help. These keys are sold individually so if you require a pair please select two in the quantity.