From the Samsonite Travel Accessories Collection. Accepted and recognized by the TSA, the 3 Dial Travel Sentry Combination Lock is constructed of sturdy zinc alloy to withstand the rigours of baggage handling. The oversized, smooth-turning dials are easy to read and operate. A triple-dial mechanism sets and re-sets with hundreds of possible combinations for added convenience and protection. Distinct design and colour make luggage easy to identify.