Kenko-kyu Health Goods Music Box Ball Kenko-kyu are traditional Chinese health products. To use them, place two balls in the palm of one hand and rotate them up, down, left, and right with your five fingers. This improves blood flow and is expected to have various effects such as improved concentration and relaxation of the hands. It is also recommended for acupressure. Hold two in one hand and rotate them, and a pleasant sound will be produced. 【Size】 Diameter: Approximately 4cm 【Pattern】 Owl The container has scratches and dirt. The clasp is also not broken.