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

Ensure you are very careful to replace the 'cover' in the exact way you removed it; it's not monkey proof-don't replace the cover upsidedown, the topside looks like it should be the bottomside! Not true. This is the 3rd one I've replaced. I did notice the 3rd one had a little larger diameter than the 2 previous ones. Just be gentle and pay close attention to the details and you will not have any problems.