Samsonite Black Luggage Lock is a necessity when you are travelling to places. It is constructed of strong zinc alloy to withstand the severity of baggage handling. The indicator ring lets you know a TSA agent has opened your checked baggage for inspection. Triple-dial mechanism sets and re-sets with hundreds of possible combinations for added convenience and security. This black luggage lock has accepted and recognized by the TSA. The weight of this lock is 3.8 ozs. And the overall dimension of that is 0.75″X 2.7″X 0.8″. It's just the perfect luggage lock for every individual.