Foam roller
The bumps knead the contours of the body, gently stretching soft tissue (muscle and fascia) in multiple directions. The action erodes trigger points, helping restore flexibility, and brings quick relief to common types of muscular pain. Through simple techniques, one can control the amount of pressure the bumps apply to the body. The bumps are closely spaced, so several of them simultaneously come in contact with the body during exercise. With a slight shift of the body, one can reduce the area of contact, which increases pressure and provides greater relief.