Worked well for a loud concert
These seem to be good, simple, inexpensive ear plugs. Nothing fancy here, just the usual. They work well enough and stay in fine. I bought these to wear to a concert in a smallish venue (1000 ppl) for a concert, and the sound system in this venue is always FAR too loud--much more than other venues. These did the trick, blocking enough of the sound to prevent ringing in the ears.
Rating: 4 stars