Andux Strengthen ExerciseTorsionTwister Disc Weight Loss Fitness Waist Magnetic Massage TWISTER-NYP-01 Product Name:Massage your Waist Twisting Plate Disc Material: ABS plastic, Steel ball Approx. total size: 25cm x 2.5cm/10" x 1.2";Feet length*width:200mmx85mm Load Capacity: 178lb Twist your way to slimmer abs, hips, and thighs,Stimulates blood circulation and Massages the feet. The magnetic wave disc will massage and stimulate meridian points on the bottom of the feet.Effectively burns calories and combines the benefits of aerobic exercise with reflexology and help promote good health.