This works really great. It really came in handy when I was packing to go home from my vacation and I found out that we were way overweight so we went and got a carry on. It is a little tricky to read it and hold luggage at the same time if you're going up over 30 pounds but just have someone else read it for you or do it in front of a mirror so you can see the dial. Super convenient thing to have if you travel often. And I didn't even realize it but there is a built-in measuring tape which helps because when we bought the new carry-on we needed to make sure that it was going to be within regulation.