The krap koo is made from two pieces of split bamboo, approximately 40 cm in length.
The krap puang is made from thin wood or brass, often consisting of a number of pieces tied with string. It is used in royal ceremonies.
The krap saepa is made from wood, like the ranat ek. It has a length of about 20 cm and a thickness of about 5 cm. The krap saepa is rectangular in shape, and is used in pairs.
- Ranat ek
- Ranat thum
- Ranat ek lek
- Ranat thum lek
- Ranat kaeo
- Bong lang
- Traditional Thai musical instruments