creates comforting warm sound as only natural products can make The keys are mounted on a wooden box that acts as the resonating . As you play you can uncover and cover the vibrato holes as you like to create tones Perfect for Beginners and Children: Easy to use, simply pluck the kalimba tines to play, and practice your finger flexibility and coordination. Easy to learn and easy to and cultivate your musical talent Security Protection: preventing moisture, oxidation, scratches, falling, and very easy to carry Super Craftsmanship: thumb piano keys are accurately tuned length of which delivers clear, sound and tones. Fine workmanship will bring you beautiful music Applicable People: Beginner,High-end Positioning,Home Education Maximum Polyphony : 16 Number of Demo Song: Less than 11 Number of Keys: 17 Number of Tone: 17 Weight (kg): 0.263 colour:Wood color Material:mahogany size:18.5*13.5cm Package Contents: 1 x 17 Keys Kalimba 1 x Learning Book 1 x Tune Hammer 1 x Cloth Bag 2 x Thumb Protector 2 x Sticker 1 x Bilingual Instruction (English and Chinese) Only the above package content, other products are not included. Note: Light 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.