Shaft: Rosewood material, Body: Karin (rosewood) material The body has been newly re-skinned with four-layer hide on both sides. (The four-stringed Kokyu is an original instrument using shamisen materials.) Can also be used for the three-stringed Kokyu. Caution: This product uses real lacquer. Please be careful of allergies and rashes. Size (unit: cm) Total length: 83 From the upper bridge to the top of the body: 48 Shaft width: 2.3 Body width: 13 Body length: 15 Body thickness: 9 Tenon tip: 9 Bamboo bow, total length 79 cm Horse tail hair: 60 cm Accessories: Rosewood bridge (three-string bridge, four-string bridge), rosin, finger rest, silk strings The bow has been modified for ease of playing.