Product details of 45CM Yoga Column Foam Roller Hard Massage Foam Roller EVA Wheel Yoga Foam Roller This roller is designed for self-massaging after sports. Give your muscles a deep massage using your own body weight Comfortable to use - Medium density muscle rollereasy for beginners , but still effective at penetrating the soft tissue layer of tired muscles . Soft enough to use while in pain from lower back injury , sciatica or plantar fasciitis 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 Widely applicable - Provides instant benefit to the hamstring , IT band , glutes , and calves by delivering superior massages at home or in the gym