good....and priced right
These cancel noise very well and allow me to sleep.  The only issue is that when you compress the foam to insert the earplugs, it expands faster than some more expensive plug.  Roll em between fingers and jam 'em in quickly.  The slightly more expensive units can be rolled into a compressed cylinder that doesn't expand as fast...and can be inserted a little deeper into the ear canal, which feels more secure.  The firs time I used these one of 'em fell out while i was asleep....
Rating: 4 stars