High-quality, resistive exercise band for rehabilitation, conditioning and training. Lightweight, compact, and portable. 5-inch width. Extra-heavy resistance level adheres to the widely accepted color-code system ranging from yellow through black.. Black stretch band provides 7.3 – 10.2 pounds of resistance.. Can be used as an exercise solution to strengthen and/or condition upper and lower body, including but not limited to, shoulders, arms, chest, upper back, neck, abs, hips, knees, ankles and wrists. Convenient, 50-yard roll packaged on core to fit most dispenser racks and in dispenser box as ready-to-use option.