New Fitness Peanut Massage Ball Yoga Massager Roller Pilates1. Product Name: Mini Peanut shape Massage Ball Shoulder Back Legs Rehabilitation Training Ball 2. Material: EPP Gender: Unisex 3. Features: effectively to relax your muscle, also for arm, neck or foot massage, can do simple self massage on connective tissue 4. Scope: suitable for massage of neck, arms, calf, Achilles's tendon and back 5. Size(approx.): (1) length * width: 24CM * 12CM 9. 45 * 4. 72; (2)length * width: 16CM * 8CM 6. 30 * 3. 15in