We had first found these pens in a store. They were great and so I was so excited to find them here. But they weren't made well. If you have it completely screwed shut so you can use it, it won't click closed. You have to unscrew the pen a bit for it to be long enough to catch where it stays closed. Great in concept but did not work in execution.
UPDATE: Mini has the best Customer Service. They were so upset that I was unhappy they gave me the money back. I may try this item again. Perhaps it was just a bad batch?