Instruct: Classify Amazon reviews into positive or negative sentiment
Query: Not a great product.

I bought this because I needed poster tube that would accommodate a 42-inch poster. This was pretty much the only one that wasn't super expensive. Yes, it accommodated the 42-inch poster, and yes it protected the poster from getting smooshed on the plane. So it did it's job. But I wouldn't buy it again. It was very flimsy. Also, the locking mechanism for the expanded lengths didn't work very well. It kept coming unlocked and collapsing on itself. And the screw cap on the end just kept popping off. Honestly, if I had known how crappy this would turn out to be, I would have just used a regular cardboard mailing tube.