The Master Lock TSA 3-Digit Combination Padlocks have been designed for use in airports around the world by Transportation Security Administration (TSA) screeners. For security reasons, they may open and inspect most luggage even if they have to damage the luggage to force entry. With the Travel Sentry certified padlocks, TSA screeners are able to unlock luggage securely, inspect and re-lock it without damaging the lock or luggage. These travel padlocks are not only designed to be tough, practical and durable but to look good as well. They are supplied with a Lifetime Warranty against mechanical failure. Suggested uses suitcases, briefcases or travel bags. Specification Type 30mm TSA Padlock. Combination 3-Digit Resettable. Shackle Diameter 3mm. Internal Shackle Dimensions 13 x 19mm. Master Lock TSA 3-Digit Combination 30mm Padlock. Colour Black Finish.