Designed for physical therapy, roll knots out of muscles for myofascial release & trigger point therapy, increase blood flow, aid rehabilitation, reduces soreness, stiffness & pain. Great for neck, shoulders, arms, legs, upper back, lower back, buttocks, thighs, hamstrings, quads, calves, shins, feet, shin splints, cellulite, and more. Wide use, highly recommended self-massaging tool by athletes, personal trainers, physical & massage therapists, dancers, runners, and their patients. Made from high-quality industrial-strength materials, with thermoplastic rubber and polypropylene handles for an ergonomic grip and 9 ABS independent rollers on a steel rod core, eco-friendly and durable. Ultra-portable and lightweight, only 18 x 1.5 inches and 9 oz, super convenient for storage and travel. Perfect for adding to a gym bag for a full body.