Master Lock Blue Set Your Own Combination TSA Approved Luggage Lock, Travel Zipper Padlock is Perfect for Suitcases, Bags, or Backpacks, 2 pk, 4688BLUEC2

Works well for luggage and other instances, such as locker in hostels. Downside: it's hard to read the numbers due to light glare on the metal.

I use these on backpacks to secure zipper together and they work great! Never going back to keyed locks.

Solid lock but really hard to read number without reading glasses. tried another brand and those I can read fine without reading glasses.

Master lock is always the best lock.

I bought these 3 pack TSA locks since it was on sale. Comparing to an old model I had back 2014, the old model looked more secure. See photos for details for comparasion. A big plus is that new model has better number visibility.