Fit Spirit Exercise Resistance Bands Resistance: 2-15lbs / Total Length: 41.5" Develop your strength, extend your stretching and boost your metabolism while toning your arms, legs and midsection. Different band colors denote different strengths so you can choose what works for you and gradually level up  Various applications including cross training, Pilates, CrossFit, or to progressively add challenge to any workout routine. Made with heavy-duty latex material to avoid easy breakage or tearing. Bands are durable and portable, making them easy to tag along to the gym or fitness studio.