I am very happy with these earplugs. I have a chronic condition with my Eustachian tubes, making it very hard for me to be in places where there's a lot of noise, like malls, restaurants, etc. I ordered these earplugs for this reason, hoping they would help block out offending noises but still allow me to hear other people. I tested them out in the perfect environment: a bowling alley. All I can say is, wow! The crashing sounds of the bowling pins and balls reduced to a soft timbre, I couldn't hear the loud music that was playing in the bowling alley, but I *could* hear other people's voices and carry on a conversation. That's just amazing. I couldn't believe what a difference they made for me. Also, they were not visible in my ear. Thank you for this product. I can now go places that I couldn't go before. Bravo!