High-pitched metallophones of Thailand and Cambodia with a range of three octaves, consisting of a rectangular box-shaped trough resonator mounted on four short legs, with 21 iron or steel bars supported on narrow wood tracks along the tops of the sides of the resonator and tuned by filing away some of the metal on the underside. They are struck with two beaters, either hard or soft. For the Thai and Cambodian xylophones of the same range and tuning, use "ranat ek."