This is the popular "Gorilla Grip." As the name suggests, it provides a firm, gripping stimulation and can be used on the arms, calves, thighs, etc. Used only a few times, with no noticeable stains or damage, and in good condition. Operation has been confirmed, and it works without any problems. Although there is no packaging, - Main unit - Power cord (AC adapter) are included (everything in the photos). Operation is simple, with strength adjustment via a single button. Recommended for those who want to easily care for themselves at home.