In Reply to: Locking suitcases with padlocks posted by Mang_Mark on Monday, 4. January 2010 at 05:33 Bali Time:
a series of numbers printed on them. Once your bag is secured, you take the tab off the top of them that has the exact same code. Before you pick up your bag just check that the two numbers match. They come in a range of bright colours so would be almost impossible to replicate the exact number and colour. To undo them you just rip the tab down the side and it comes undone. I brought mine from the Post Office for about $7 for 10.