Instruct: Classify Amazon reviews into positive or negative sentiment
Query: Perfect except...

This tea ball works exactly as described, and I use it often. My only complaint is that the chain is a little short, but it's definitely not a deal breaker (I just can't loop it around itself and clip it to prevent sliding). I just leave part of the chain out of the teapot, and secure it with the top of the teapot, and when I'm ready to pour, I make sure the chain is secure. Everything else about this works great.