Feature: 1. Reed adopts high‑quality phosphor bronze tone spring with accurant tolerance ratio and features the characteristics of phosphor bronze tone reed. 2. Pronunciation is crisp, the sound is bright, the air tightness is good, which keeps solid structure and good air tightness. 3. Base plate adopts 1.2mm thickened pure brass base plate, increases the vibration of the reed, the sound is more loud and full. 4. Surface of the base plate is electroplated to prevent the saliva from corroding the brass plate and extend the service life. 5. Harmonica frame is made of ABS resin material, which is transparent and bright, and has good water resistance. There are four "DO" sound positions on the mouth of the harmonica. Ultrasonic welded 4 white H‑shaped parts to quickly identify the main sound position. 6. 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 theory better. Specification: Item Type: Harmonica Model: KS-24P Reed Material: Phosphor bronze Base Plate Material: 1.2mm brass Cover Plate Material: Tigold stainless steel plate Comb Material: ABS resin Color: Black / Gold (optional) Key: F Key / F# Key (optional). Package List: 1 x Harmonica Bag1 x Harmonica Cloth1 x Chinese User Manual1 x Harmonica