TSA Lock is a global security system which allows passengers to lock
their luggage, while permitting security authorities to inspect them
without damage.  The Transportation Security Administration (TSA), an
agency of the U.S. Department of Homeland Security, was the first
security agency to use the system.

When travelling to airports across the USA, Canada, Japan, Israel,
Finland, Norway, Denmark, Czech Republic, Germany, Austria, Belgium,
Netherlands, Switzerland, South Korea, New Zealand and soon other
countries, security agencies are equipped with tools that allow them to
open, inspect and re-lock any items of luggage secured with TSA LOCKS
without damage. These locks can also be used for travel to all other
countries.

Simply look for the ‘Red Diamond’. Every lock that carries the Travel
Sentry® Approved mark is accepted by the TSA and other security
agencies.