Product category: Thumb pianoMaterial: solid beech + epoxy resin + mineral metalColor: log color + blueKeys: 17 keys。Mode: C tone。Wonderful Sound: Without any music basis, you just move your thumb to get the wonderful music that delights your day long.Applicable: The great instrument for performance, recording, family entertainment，outdoor, school, party, and relaxation.Package: 1*thumb piano1 * scale sticker1 * tuning hammer1 * cleaning cloth1 * music score1 * canvas storage bagOnly the above package content, other products are not included.Note: Light shooting and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.