Really work!
These are better than many wax earplugs...pull off most of the cotton so you get a good seal, and mash them into your ear canal.  Don't make them too pointy, it'll hurt your drums.  Roll them up a bit betwixt thumb and forefinger until they soften, which they do readily, then put them in and push the wax around until you get a good seal. Beats foam earplugs hands down, and a handy carry case too.  I use mine several times before I toss them; depends on how much wax you build up in your ear canal, I have very little.
Rating: 5 stars