Huuluharppu Lee Oscar

I used them very little

https://youtu.be/KYHKsg_hh4E?si=HXnbrv95B_tGBNet

https://www.harmonica.com/store/lee-oskar-major-diatonic-harmonica-key-of-c/

As on the picture they are available in several and modes keys

-Melody Maker D, G, C, E

Natural Minor Em

Harmonic Minor Am

The plastic cases allow them to be attached together (see video)

Price per unit 35€