... material: EPE,Colorl various 2.Uasge: Improve core strength, Increase flexibility,Release tension, Rehabilitate injuries foam roller1.material: EPE ... ,Colorl various 2.Uasge: Improve core strength, Increase flexibility,Release tension, Rehabilitate injuriesFoam Rollers can be used ... roller to apply pressure to sensitive areas in their muscles, or areas of increased muscle density/tension sometimes ...