This machine comes with 1 Main Device, 3 handles, which acts on for different body parts. The operation panel is simple, and the handle is carefully developed, which conforms to the ergonomic structure and is easy to use. We recommend using the machine once or twice a week, and no more than 15 to 20 minutes each time, Better use with the gel, (This product does not contain gel). This Machine Adjustable intensity to meet your demand.Enough to fit on a dresser, A best gift for those who pursue pretty. We promise you 100% quality and satisfactory service.