BENEFITS: Using this roller massage tool helps to alleviate tense muscles and reduce inflammation. The dual massage ball roller tool is textured to mimic the hands of a masseuse. So you can deal with muscle knots before they become a persistent problem MOUNT AND MASSAGE: The average massage roller ball is limited to the range of your hand, leaving some muscles frustratingly unreachable. This massage tool mounts easily to any smooth surface with zero damage. So you can stimulate any sore areas to aid faster recovery SIMULATION: You cant outrun your tense muscles, but you can take this manual massager anywhere. Take it to the gym, the office, or across the world. If you ever need quick relief from discomfort, this back massage roller will have you covered SURFACES: It can mount to smooth sealed surfaces like metal, plastic, laminate, and smooth painted drywall (at least two coats of paint). While uncommon, certain paints have properties that prevent the airlock from activating. When using your Symbodi Massager on any new surface it is important to test the mounts ability to stick to it. INCLUDES - 1 Wall Mount, 1 Vertiball, 1 Vertiroller. The product is designed to be used on smooth surfaces, walls, or the ground.