SwissGear TSA-Approved Travel Sentry Combination Luggage Lock with Resettable Combo and Inspection Indicator, Black, One Size Price: $13.49 (as of 25/07/2023 02:00 PST- Details)

Lock uses a resettable 3-digit combo that you can assign.
Special code allows TSA screeners to open and re-secure your lock without destroying it.
Red indicator ring pops up when lock is opened for inspection.