Thickened acrylic piano body, high density, good sound resonance, and better feel when playing. Safe and non-irritating materials, use better materials to care for . Comfortable curvature of keys, notes carved on the keys, faster to started. Is a suitable instrument for beginners to learn. Exquisite is a great gift for children and good . Name: 17-tone crystal transparent thumb piano Material: acrylic+metal Color: as shown Size: 12 x 2 x 15cm Weight: about 486 grams Package Contents: 1 x Thumb piano 1 x Storage bag 1 x music score 1 x Tuning hammer 1 x Wipe the cloth 3 x scale sticker Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the a little different from the real thing. The measurement allowed error is +/- 1-3cm.