Features:- Perfect for any music beginner or harmonica lover.- Adopt stainless steel screw, not rust.- Stainless Steel material, can stand wear and tear, very durable.- Adopt green resin material, the color is transparent and bright, good waterproof.- Open design on the back, louder.Model Name: SOLAR 20Holes: 10 HTone: Blue KeyNumber of Keys: 24 TonePronunciation Method: DiatonicReed Material: BrassCover Material: Stainless SteelCase Material: ResinColor: GoldProduct Weight: 65gProduct Size: 103 x 30 x 20 MMPackage Weight : 115 G / 4.06 OuncesPackage Dimensions (L*W*H) : 120*45*30 MM / 4.72*1.77*1.18 InchesRetail Packaging: No, No PackingPackage Include:1 x Harmonica1 x Carrying Case1 x Instruction1 x Clean Cloth