Roneat thung, ranat thum lek, ranat ek
The ranat thum (Thai: , pronounced [ranâ:t t?úm]) is a low pitched xylophone used in the music of Thailand. It has 18 wooden keys, which are stretched over a boat-shaped trough resonator. Its shape looks like a ranat ek, but it is lower and wider. It is usually played in accompaniment of a ranat ek.
It is similar to a Cambodian xylophone called roneat thung.