Lewis N Clark Travelsentry Indicator 3-dial Metal Tsa travel sentry approved bag lock with resettable 3-dial combination Pop-up indicator - this function notifies you whenever a tsa agent has opened your bag. The red indicator is clearly visible after inspection, so you can inspect your contents. 3-dial combination lock - dial numbers move smoothly and are easy to read. No need to fumble with keys or remember where you placed them. 70mm heavy-duty coated steel cable threads easily through zipper pulls 3x1.5x1