• 3-digit numeric combination. • Smooth and secure rotation, made from high-quality materials to prevent it from being opened by breakage or impact. • Accepted and recognized luggage lock: "Special Key Compliant TSA Lock" (can be opened with a special master key, so it can be opened by all TSA operators). Never arrive again with a destroyed travel suitcase, suitcase covers, or travel bag. • Also especially useful for backpacks, suitcases, gym lockers. ABS, metal alloy.