TheraBand Professional Non-Latex Resistance Bands For Upper and Lower Body Exercise Workouts, Physical Therapy, Lower Pilates, and Rehab, 25 Yard Roll Dispenser Box, Red, Medium, Beginner Level 3 A superior band for resistance training and rehabilitation, provides both positive and negative force on muscles and joints to stretch and tone muscles Improves strength, range of motion and flexibility in a simple to use, portable product that works in the clinic, the gym, at home or on the road Color-coded Progressive Resistance system allows users to recognize improvement as it happens, as you grow stronger you can move up to the next color Non-Latex Resistance Bands with no scent and no powder meet the needs of patients, practitioners and personal users with latex allergies Medium Red Bands are the third of eight resistance levels, offer 3.7 lbs. resistance at 100% elongation and 5.5 lbs. at 200%, each band measures 4" wide