Ranat Thum is a traditional Thai musical instrument, specifically a type of xylophone. It is made of wooden bars that are struck with mallets to produce sound. The instrument is often used in classical Thai music ensembles and is known for its bright, resonant tones. The Ranat Thum typically features a curved shape and is played while seated. It is an essential part of various cultural performances, including traditional dance and theater, contributing to the rich musical heritage of Thailand. The instrument is appreciated for its melodic qualities and intricate craftsmanship.