Our game changing dual therapy roller combines the benefits of traditional foam rolling with the comfort and relaxation of therapeutic heat. The MojiHeat Roller is the hottest roller on the market! This roller features a 2-piece design that fits easily into most microwaves. This patents-pending roller features a textured, cushioned outside for maximum rolling comfort. Great for your back, glutes, hamstrings, hips, quads, IT bands, and calves!