Maxpedition Gear Tactical Luggage Lock Overall size 1.5"(L) x 0.25"(W) x 3"(H) High security 3-dial combination TSA lock with 3.7" steel cable fastener Designed to be opened and re-locked by airport security luggage inspectors without damaging lock Travel Sentry Approved Travel Sentry is the luggage security system officially recognized by TSA (Transportation Security Administration) at all USA Airports and H.M. Revenue and Customs in the UK