For software activation or hardware identification, Apple uses serial numbers rather than traditional "product keys." Buy Apple Macbook Pro Replacement Keys
If you are looking for physical replacement keys for a MacBook Pro keyboard, several reputable third-party vendors specialize in providing individual keycaps and hinge mechanisms. This is often a cost-effective alternative to a full keyboard replacement. MAC Keys - Pro Serial Key?q=MAC Keys - Pro Serial Key
: Most "key kits" include the keycap, the scissor hinge clip, and sometimes a rubber cup. For software activation or hardware identification