The keychain holder is extremely cheap and will break on you
I bought these because I loved the idea of having earplugs with me no matter where I was. I have owned these earplugs for less than 2 weeks, and the keychain holder's threads stripped when I pulled my keys out of my pocket. The case no longer holds together. I am not rough on my keys either and they are not excessively tight in my pocket.
Rating: 2 stars