Instruct: Classify Amazon reviews into positive or negative sentiment
Query: I can't believe I ever lived without these!

These do exactly what they are supposed to do, and they're perfect! I had been searching for these for some time in the stores unsuccessfully. I was so happy to find them here in the price range I imagined. My hands & wrists are so grateful - no more raw fingers or sore wrists. Also, they work pretty quickly, and I also save time by not having to try 10 different tactics to try to open a jar or a bottle.