CanDo® Perf 100® economic bulk size roll is the best value for large clinics. The CanDo® Perf 100™ offers a true 100 yard roll of exercise band in a convenient dispenser box. The band is perforated every 5 feet. There are 60 5-foot exercisers in each roll. To prepare exercise band for use simply pull 5 foot length from dispenser box and separate perforation line by hand. No scissors are needed!. CanDo® high quality latex resistive exercise band has been used in clinics for rehabilitation, conditioning and training since 1987. It has become a well known staple of many physical therapy programs. CanDo® exercise band is an economic solution for upper and lower body exercise. Lightweight, compact and portable. Durable. Effective when used alone, or with handles and anchors. Color-coded according to the exercise band?s resistance. CanDo® is licensed to use the Thera-Band® color sequence so resistance level is easily identified. Available in 8 levels of resistance for progressive exercise. Levels range in order of strength from least to greatest resistance: tan, yellow, red, green, blue, black, silver, gold. Uniform width - each band is 5" wide. CanDo® low powder exercise band is made of natural rubber latex, which may cause allergic reactions. For those with latex sensitivities, there are latex-free alternative offerings of CanDo® exercise band. 100 yard Perf 100® roll - Blue - heavy.