A foam roller is a cylindrical tool made of dense foam, commonly used in physical therapy and fitness. It helps relieve muscle tightness, improve flexibility, and enhance recovery after workouts. By rolling various body parts over the foam roller, users can apply pressure to trigger points, which can alleviate soreness and tension. Foam rollers come in different sizes and densities, catering to various needs and preferences. They are often used by athletes, physical therapists, and fitness enthusiasts as part of a warm-up or cool-down routine. Incorporating a foam roller into regular exercise can promote better muscle health and overall well-being.