Instruct: Classify Amazon reviews into positive or negative sentiment
Query: Sound Deadening Earplugs.

I've been told I have small ear canals but these still fit great. I had considered noise cancelling head phones but these are so much more ecconomical and portablitiy is a no brainer. If you are looking for something to help quiet your environment for a little while, please don't spend your money on electronics, try these first.