Foam rollers are cylindrical tools made of dense foam, commonly used in physical therapy and fitness. They help relieve muscle tension, improve flexibility, and enhance recovery after workouts. By rolling various body parts over the foam, users can apply pressure to trigger points, which can alleviate soreness and tightness. These rollers come in different sizes and densities, catering to various needs and preferences. They are often used in conjunction with other recovery methods, such as stretching and massage therapy. Foam rolling is popular among athletes and fitness enthusiasts for its effectiveness in promoting overall muscle health.