Don't believe Worlds Finest Earplugs.com. They don't ever get around to sending you your money back, even when you ship the earplugs back, get a return authroization number and even call them a bunch of times. Also, they don't work any better then the foam ones you get for three dollars. Don't lose your money like I did. I never do complaints like this but I wanted to this time because they make you wait so long for the refund that you can't complain to your credit card company. What a ripe off so Beware.