Finger Piano: 21 Key Kalimba With Instructions And Tuning Hammer; Sail Away: Product Details ?High Quality Material? : Kalimba thumb piano is handcrafted with high-quality wood and ore steel bars, Adopting laser engraving technology, the surface is smooth and round, with clear patterns. ?Embossed Notes Hand-rest Curve Design? : The Kalimba thumb piano 21 keys are embossed with letters and notes, which help begginers and kids to recognize and memory the key, and easily learn to play the songs . A Christmas music gift for kids adults beginners . ?Professional Sound Effect? : The Kalimba 21 keys uses selected mahogany tonewood materials and acoustic shrapnel with traditional technology to ensure a warm and deep sound effect, solid wood structure to give off a full and complete vibration. ?Portable Thumb Piano?: This thumb piano 21 keys is a portable instrument .More keys and wider musical range gives you wider choices for chords and songs than Kalimba17 key. You can take it anywhere,party,travel,camping, and play music anywhere to relax yourself and bring happy to friends and family. ?About Tuning? : All the products you receive are professionally tuned. If you need to tune when you use it, please follow the manual or tuning software to tune. Software tuning Download tuning application. (IOS: Instuner, Android: gStrings) 2. Tuning with the hammer. Please refer to the online video tutorial for specific operations. Payment We accept PayPal and credit cards via PayPal. Taxes - US We collect sales tax, as required by law. Shipping We make every effort of shipping within 3 business day of payment clearing. The estimated delivery time is 2 - 5 business days from the shipping date. Policies If you do need to return your item, please contact us via email (you will receive an email when your product ships with additional details - Subject: Important information about your purchase). You will then be provided with a return shipping label and packing slip. Pack the item carefully. Include the packing slip, apply the shipping label, and return the item within 30 business days of the date you request a return, or your return will be canceled. Once we receive your order we will inspect the return. Please allow up to 5 business days of receiving the returned item for your refund.