Full-length elastic bands designed for a full-body workout that you can do wherever you are – in the gym, outdoors or at home. Strength Bands or elastic bands are the perfect functional prop for training with additional resistance without any effect on the joints, so it is ideal in sports rehabilitation, but it is also recommended for all fitness enthusiasts who want to improve the strength of the whole body, explosive power and endurance with minimal risk of injury. Elastic bands are available with 3 resistance levels : Orange: light (35lb-70lb/16kg-32kg) Grey: medium (45lb-110lb/20kg-50kg) Black: heavy (60lb-150lb/27kg-68kg)