Features: Quality Material: This 17 keys/21 keys thumb piano is handmade with quality acrylic material and steel bars, giving you a good sense of hearing, sight and touch. A delicate and professional kalimba instrument that will amazing you! Standard Tunes: Soft, clear, crisp and sweet tone. Small size pocket piano, portable for performances, recording, family, outdoor, school, party, and relaxation. Best gift for kids, adults, beginners. Beautiful Sound: All keys sound perfect, suitable for a very wide range of music: folk, rock, African, classical, carols , which giving you a good sense of hearing and easier to learn new songs. Ergonomic Design: Hand-rest bending keys provide a more comfortable experience. The keys are engraved with note and letters, which makes it easier for you to learn and study Kalimba faster. Music for All Occasions: Music can soothe tired mood and make you calm or happy. Playing Kalimba is alway relaxing and pleasant, it not only brings enjoyment of music, but also allows you expressing yourself. Specifications: Material: Acrylic Color: As The Picture Shows Style Options: 17 Key/21 Key Size: approx.15.3x15.4x2cm/6.02x6.06x0.78in (More Size Detail, Please See Photo.) Package Includes: 1 Set of Thumb Piano note: Please allow 1-2cm error due to manual measurement. Please make sure you do not mind before you bid. Due to the differences between different monitors, the picture may not reflect the actual color of the item. Thanks!