This is the replacement key for the currently available BHM7107 ignition switch. Fits some Minis from 1987-1989, but please check the cross-section shows view, looking from the tip of the key toward the head, and examine your existing key to see that it matches.
Keys are sent as blanks and can be cut to fit your car at any local key shop for a nominal charge. Check to make sure your blank key fits into your ignition before cutting.