eBTop Quality ProductsFree & Fast Shipping5 Star Customer ServiceSatisfaction Guarantee Harmonica 10 Holes Harp 20 C Tone Diatonic Harp key C Blues Jazz band mouth organ Harp Early Education Baby Music Sense Training   Harmonica 10 Holes  20 C Tone Diatonic key C Blues Jazz band mouth organ harp  Harp Early Education Baby Music Sense Training How to play? There are two reeds in each sound hole, each of sound hole can emit two sounds(Suck and blow), so there are 20 tones. Number on the harmonica body (1-10) reprensents the pitch,the more big number,  the more high pitch.Just blow or suck the hole with the number on the harnonica,It's very easy for everyone. Holes: 10 Key: C Material:Metal,Plastic Size:10cmx2.5cmx2cm Package:  Harmonica x 1 Box x1 Sheet music(Chinese description)x1      Payment   Shipping   Returns We accept payments using one of the following methods: eCRATER Payments Pay as soon as possible after your purchase so we can ship your item faster. We offer FREE shipping on all orders! Your order will be dispatched within 3 working day of receiving payment (Monday-Friday). The shipping times depends on your shipping method choose In the very unlikely event that your item is lost or damaged during post, then WE are responsible and will issue either a full refund or replacement. If you are not happy with your item, then you are entitled to a full refund (including the original postage cost) if it is returned within 30 days. If you have simply changed your mind, then you have to cover return shipping costs (we suggest using a trackable method). However; if the item is damaged faulty or in any way not as described, then you will not be responsible for the return postage.