Japanese Musical Instrument Naruko - Red and Green Set of Two

Set of two pairs of red and green Naruko clappers.
Made of wood.
The red ones are in almost perfect condition (no string).
The green ones show signs of frequent use, with damaged corners and peeling paint.
They function perfectly as Japanese musical instruments and produce a good tone.
Size: Height 17.5cm, Width 7cm, Thickness 3.5cm, (Handle) 0.7cm