I use two of these locks to secure conference boxes. Usually only one is returned that is still attached to the box. They'll probably work well in a suitcase because they're not heavy, but they don't fit in my conference boxes. Why do I keep buying them? Because they are inexpensive, they are very easy to program and they are not bulky. I give them three stars because they fit my needs. For something that won't fail, they're probably really good.
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