Feature: 1. Service life of the base plate can be extended by electroplated surface to prevent the saliva from corroding. 2. Reed vibration can be increased while the sound is more loud and full, which adopts .2mm thickened pure brass base plate. 3. Harmonica frame is made of ABS resin material, which is transparent and bright, and has good water resistance. 4. Transparent and bright, harmonica comb is is made of ABS resin material to keep good water resistance. 5. Meanwhile, there are four "DO" sound positions on the mouth of the harmonica. Moreover, ultrasonic welded 4 white H‑shaped parts can quickly identify the main sound position. 6. Reed adopts high‑quality phosphor bronze tone spring with accurant tolerance ratio and features the characteristics of phosphor bronze tone reed. Pronunciation is crisp, the sound is bright, the air tightness is good, which keeps solid structure and good air tightness. 7. Tonal mark on the left, the tonal mark on the left side of the harmonica, and let you see tonality at a glance and learn music theories better. Specification: Item Type: Harmonica Model: KS-24P Reed Material: Phosphor bronze Base Plate Material: 1.2mm brass Cover Plate Material: Ti gold stainless steel plate Comb Material: ABS resin Color: Black / Gold (optional) Key: D Key / D Key (optional). Package List: 1 x Harmonica Bag1 x Harmonica Cloth1 x Chinese User Manual1 x Harmonica