1This concertina is made of ABS wiht celluloid decor, lightweight and tough, durable for long time use 217 keys with 8 bass buttons design, can make nice mellow sound 3Easy to learn to play, comes with a manual, good for beginners 4With an adjustable stra on the side, convenient to carry 5Help to develop children's musical talent, improving their sense of rhythm, good for beginnersFeatures:This concertina is made of ABS wiht celluloid decor, lightweight and tough, durable for long time use. 17 keys with 8 bass buttons design,can make nice mellow sound. Easy to learn to play, comes with a manual, good for beginners. With an adjustable stra on the side, convenient to carry.Help to develop children's musical talent, improving their sense of rhythm, good for beginners. Specification:Material: ABS +CelluloidColor Options: Red; Blue; Green; Navy BlueKey: 17Size: Approx. 23 x 24 x 12cm / 9 x 9.45 x 4.72inWeight: Approx. 1577gPackage List:1 x Accordian(Rope Color Random) 1 x Manual