This double tube resistance band offers effective strength-training. Workout your arms, back, shoulders, legs, and butt all at once with mobility band, perfect for for body stretching, resistance training, yoga, and physical therapy to help strengthen ligaments or muscles. Fitness bands are even used for most muscle rehabilitation, and usually do not require a partner to support you. Our closed-loop figure 8 design are a perfect tool set for stretching, muscles toning, yoga, Pilates, weight lifting, home gym, and physical therapy. They are durable, tough, no fear of tearing or snapping. QTY over 3000 ship by sea.