The Master Lock No. 4686EURT Set-Your-Own Combination TSA-Accepted Luggage Padlock features a 30mm wide zinc body for durability. The 3mm diameter shackle is 20mm long and made of steel, offering more strength. With a modern design and variety of colours (purple, black, red and blue), recognised in 29 countries, globally, they are ideal for traveling around the globe. They allow TSA screeners to inspect and relock baggage without damaging the lock. Pack Size 2. Body Width 30mm. Shackle Length 20mm. Shackle Diameter 3mm.