The Squire TSACOMBI35 TSA Approved Combination Padlock has a 35mm body with a 3 wheel, recodable combination wheel. Designed for use in airports around the world to aid Transportation Security Administration (TSA) screeners. For security reasons, they may open and inspect most luggage even if they have to damage the luggage to force entry. With the Travel Sentry™ certified padlocks, TSA screeners are able to unlock luggage securely, inspect and re-lock it without damaging the lock or luggage. Specification Body Width: 33.5mm.Body Thickness: 15mm.Shackle Diameter: 3.5mm.Vertical Shackle Clearance: 18mm.Horizontal Shackle Clearance: 14.5mm.