Ghana
Ewe

Metal-iron, fiber string
Mid 20th century
Length:  3 inches
Idiophone – Struck Directly  – Metal Bell

The frikywa (FREE-chee-wah), also known as the grello bell or African castanet, is shaped like a large, open walnut shell connected at the top and bottom.  When played it is held by one finger. The ring is used to strike the bell and can be worn on the thumb and played like a castanet, or held in the opposite hand.