Instruct: Classify Amazon reviews into positive or negative sentiment
Query: Plastic is too thin

I bought 4 of these and I'll probably end up throwing them away. The little teeth are good but the thimble part is so small and the plastic they made it out of is so thin that a suction gets created when you try to pull it off and it's a little like the chinese handcuffs I had as a kid - the harder you pull, the harder it is to get it off. Nobody tried them before they decided to freeze the design, I guess.