Professional internal tuning Frame drums with synthetic, natural skin or special skin. Traditional egyptian frame drums (tef). Hassan fish skin Riq, Variety of professional Riqs from the best makers. Traditional arabic Clay dohola with case and a heating dimmered lamp for controlling the skin's stretch. Persian daf, qaval and doira from the caucasus. A World of ethnic percussion instruments, from makers around the world: Egypt, Germany, Turkey and more. Every instrument is carefully checked for the best quality.