TheraBand Professional Latex Resistance Bands, Individual 6 Ft Elastic Band for Upper & Lower Body Exercise, Physical Therapy, Pilates, At-Home Workouts, 6 Foot Band, Yellow, Thin, Beginner Level 2 A superior band product for resistance training and rehabilitation, provides both positive and negative force on muscles and joints Improves strength, range of motion and flexibility in a simple to Use As you grow stronger you can move up to the next color Highest quality natural rubber latex resistance bands are recognized as the original System of progressive resistance for over 40 years Thin yellow bands are the second of eight levels of resistance and great for rehabilitation or beginning an exercise program, they offer 3.0 lbs. Resistance