ForgeTSA Approved Luggage Locks, Ultra-Secure Dimple Key Travel Locks with Zinc Alloy Body

what is the warranty on these locks?

Does the 8 pack come with 2 sets of keys for each lock?

So, can I open someone else's lock with my key? Are all locks that you sell can be opened with one key?

Past review states the key can be removed without re-locking. Is the re-locking feature confirmed and tested?