Instruct: Classify Amazon reviews into positive or negative sentiment
Query: Not sturdy at all

I bought this to take my 18lb fox terrier on a 2 hour flight with me, so I thought I'd be fine. My dog was a little uncomfortable and started to move while I was checking in to the flight, and after 2 minutes of moving inside, he tore the side open and stuck his head out. Of course I could not travel with him like that, so I had to buy a new one at the airport.