Features: Material: 100% natural latex, TPE Free Dimension: Length: 12 inch, Width: 2 inch Thickness & Weight: Green = 0.35mm & 10.5g; Blue= 0.50mm & 15g; Yellow= 0.7mm & 21g, Red= 1.90mm & 27g, Black= 1.1 mm & 33g; Tension Level of workout bands: Green band = X-Light (3-6lbs), Blue band = Light (10-12lbs),Yellow band= Medium (15-20lbs), Red band = Heavy (25-30lbs), Black band = X-Heavy (35-40lbs) Multiple uses: Resistance Exercise Bands are often used a huge variety of exercises. The Set 5 band loops are not only for Sports and Fitness but also ideal for Physical Therapists as they are great for rehabilitation. The resistance flexible bands are beneficial for general exercise, strength training, rehab after injury, injury prevention, body shaping, weight loss. Our durable X-Light and Light bands are great for beginners, while our medium, heavy and x- heavy exercise bands are targeted for more intermediate and advanced strength training. You can use a single band, or multi different resistance loops for a heavy strength training. With carrying bag the workout bands are so easy to pack in your bag and tack them wherever you travel. Take them to the gym if its more time efficient and convenient, stay at home and still get an awesome home workout in. What's in the Box? 1x Green Band 1x Blue Band 1x Yellow Band 1x Red Band 1x Black Band 1x Carry Bag 1x Instruction Sheet.Smile Service. We stand by the quality of our exercise bands. If there are any issues on the resistance band loops, then send it back to us for replacement or your full money back. We know you will love it!. 12 x 2 inch heavy duty resistance loops band are often used for sports and fitness. Like popular workout program including Yoga, Pilates, and more. Or use the exercise bands for home fitness, general exercise, stretching, strength training, power weight programs or physical therapy. Exercise Bands for working out included X-Light band is 3-6lbs, Light band is 10-16lbs, Medium band is 15-20lbs, Heavy band is 25-30lbs, X-Heavy band is 35-40lbs. The X-Light resistance band is good for children or rehabilitation training; Light and Meduim band is used by begginers, Heavy loop is a goof choice for a seasoned workout warrior. And XX-Heavy bands are suitable for strength training. Workout bands are made of 100% natural latex (TPE free), no rubber smell, elastic and durable. Storage bag is made from nylon, it will be easy to storage the resistance loops and take them everywhere. High end resistance loops come in five resistance levels (X-Light, Light, Medium, Heavy, X-Heavy). That make the resistance bands perfect for beginners or a seasoned workout warrior.