These are new-concept earplugs made in Germany. They are a new type of earplug that fits snugly in your ear using your body temperature and provides soundproofing. Because they are made of a soft material that changes shape with body heat, they block out sound more effectively than any other earplugs. They reduce noise by up to 22dB. Made of skin-friendly materials. One case contains 12 pieces (protected with Vaseline and cotton wool before use; they are made of an adhesive material). They are not disposable, but because the material changes shape with body temperature and warmth, they will lose their original form after an average of less than 10 uses, which is the end of their lifespan. They are also inconspicuous when in use (skin color). They also protect against water, such as in pools and showers. Purchased directly from Germany last month. Price includes shipping. The box and container are all written in German and the alphabet, so please check the following for details. YouTube video on how to use them: https://youtu.be/PEhRjUxqkqI Official website (in English): www.ohropax.de/en/products/ohropax-classic Thank you.