TheraBand Professional Non-Latex Resistance Bands, Set of Three Beginner Level Flat Elastic Bands for Strength Training, Rehabilitation, Physical Therapy, Flexibility, Stretching, Yellow & Red & Green Stretches, tones & conditions all major muscle groups, perfect for those with latex allergies or sensitivities Simple & easy to use product for upper & lower body exercises that can be performed anywhere, is ideal for conditioning & rehabbing muscles The Non-Latex Resistance Band increases both strength & flexibility in a subtle & natural manner Rehabilitate muscles through simple yet effective workouts to increase strength & improve motion Each band measures 5 feet long x 4 inches wide and comes in three color-coded resistance levels: Yellow-3-4.3 lbs.; Red-3.7-5.5 lbs.; Green-4.6-6.7 lbs.