Strengthens abductors and adductors for speed skating, baseball and tennis training. Includes 8-ft long modular heavy rubber tube with Safety Cord, mounting loop, adjustable ankle strap and two 2-in (5 cm) adjustable VELCRO brand closure waist belts. They fit up to a 52-in (1.3 m) waist. Available in black resistance level (20 – 45 lbs./9.1 – 20.4 kg of pull). Interchangeable.