Use the Black Trigger Point Grid Foam Roller to roll out tight muscles that have created aching in the body. Regular use of the foam roller may help to reduce delayed onset of muscle soreness (DOMS), which may also be described as muscle tenderness or trigger points. The use of a foam roller also in the short term increase flexibility and joint range of motion. It can be used on multiple muscle groups, including your glutes, hamstrings, legs, back and much more. You can perform balance and core exercises, or just use it for simple stretches each morning.