High-quality, resistive exercise band for rehabilitation, conditioning and training. Lightweight, compact, and portable. 5-inch width. Extra-light resistance level adheres to the widely accepted color-code system ranging from yellow through black.. Adds extra-light resistance in stretching, balance, cardio and strength training. Yellow stretch band provides 3 – 4.3 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. Roll is 50 yards long..