This is a 25-string Concert Quality Kayagum. 25-String kayagum is the advance modified version of Korean kayagum. It's tuned in diatonic rather than pentatonic. Therefore, it capable of playing both Korean traditional pieces and modern pieces, as well as western songs.
This kayagum is pure handmade. The whole wood piece is carved out from paulownia body with detail craftmanship and elegant decoration. The bottom board is made of paulownia wood as well. The bridges are made of sandalwood with decoration. The frame is made of sandalwood and walnut wood. The strings are made of tetron nylon strings that imitate the touch and sound of silk strings, yet they are capable of strong playing.