These harmonicas are awesome. Though I am a beginner, I can clearly tell that these harmonicas, though made with strictly plastic, are quality built. The sound is amazing for these extremely affordable harmonicas and it comes with a great protective case. These harmonicas are great for just throwing them in your back pocket when going camping, to the beach, or just to the store. This set contains seven harmonicas each one in a different key; A, Bb, C, D, E, F, and G. Some professionals claim that this set plays more quietly than other professional harmonicas. Many people claim that these harmonicas are terrible, that they rip the skin off your lips, that you learn bad habits from them, that the sound is terrible and that they break easily, but for the amount of time that I have been using them, I have yet to experience these problems. These are good harmonicas to just throw around and bring anywhere without worrying about loosing or breaking them.