I'm selling these earplugs because my child bought them when they started drum lessons, but they weren't used to wearing them and didn't use them after trying them on. They block out sound more effectively than regular earplugs! I think they'd be useful for people who play music, travel on airplanes or bullet trains, sleeping, and in various other situations(^^) They come with a red case. The case lid has some minor scratches (see photo 3).