Instruct: Classify a given review into positive or negative sentiment.
Query: Best of a poor product line...

OK. These are the most durable Double-Wall Thermo Glasses by Bodum. That being said, they are VERY FRAGILE! The inner wall is paper thin. My set broke within a month of daily use. I'll not be buying any Bodum glass products again.I was very gentle with them. Hand washed with soft sponge, etc. They are just not very durable. Don't expect them to last.The other glasses are much worse. The larger Bodum glasses lasted less then a week. Stay away from these poorly designed products.