I have small ears and most ear buds hurt my ears or just fall out... until I found these.. as a great band once said "the search is over!" The package comes with 3 size silicon pieces...the part that is actually put into your ear. Since they fit your ear exactly it blocks out all the noise around you! That noisy train or the noisy person sitting next to you in the library. The sound quality is great as well! You wont be sorry with these ear phones!