Product Description 1.lightweight yet rugged solid core massage roller mimics the finger , palm , and thumb of a therapist's hands . 2.High density muscle roller is comfortable to use - so it's great for beginners , and effective at penetrating the soft tissue layer of tired muscles . Firm enough to provide intense benefit to lower back injury , sciatica , or plantar fasciitis . 3.One of the best recovery tools to treat muscle pain , increase performance and flexibility. Rolling before and after exercise sis part of a great stretching routine . Increases blood flow to massage site , flushing away stored lactic acid . 4.Stretch overworked and strained muscles of the leg , arms , and feet by rolling during your warm up and cool downs . Provides instant benefit to the hamstring , IT band , glutes , and calves by delivering superior massages at home or in the gym . 5."Loved by runners , exercise athletes , yoga and pilates students , swimmers , physical or sports therapy patients , and aid those just doing a normal fitness workout . Great for the arch of the foot , and any part of the superior body but the spine or neck .