Approximately 14 cm tall. New, unused, and in excellent condition. Please note that the box has some stains. The Gyokushou Roller is said to be effective for dizziness, tinnitus, eye strain, and other autonomic nervous system symptoms. Using it as a home remedy can lead to quicker and more accurate symptom improvement. It is said to be a needle-less acupuncture. I am also selling it on other flea market apps, so it will be first come, first served.