Instruct: Classify Amazon reviews into positive or negative sentiment
Query: Carex Buddy Wrap

This wrap does not work! It doesn't get cold at all. I have had multiple knee surgeries and was looking for something I could travel with and put in small freezers at the office or in the hotel. I sent this back. Check at Target or Walgreens for a similar version with a removable sleeve that you can wash. It has a mud base and gets cold and stays cold for almost an hour. I wouldn't recommend this product.