Feature 1、Workout & Fitness: Filled with the iron shot, add more resistance to your daily workout. Strengthen your legs, burn calories and fat. 2、Multifunctional: Perfect to use as wristbands, ankle straps, armbands, etc. Besides that flexible adjustable bands that you can connect to each other and use as a high visible belt as well. 3、Comfortable: Much more comfortable and practical than other sleep bands on the market.Great for runners, walkers and cyclists and those who enjoy running, cycling, walking, jogging, biking or even riding a motorcycle. 4、Function: Can be tied to the trouser legs, or on the arm, with night reflective strips to increase night safety. 5、Suitable for: Ideal for athletes, coaches, trainers, physical therapists, and healthy minded people of all ages. Size: about 10 * 48cm / 3.9 * 18.9inch Function: Can be tied to the trouser legs, or on the arm, with night reflective strips to increase night safety Material: Nylon Note: Please note that the new type and old type of this product will be sent randomly, and make sure you will not mind before ordering. Package List 1 pair Bike Bands Note Due to the different monitor and light effect,the actual color maybe a slight different from the picture color. Please allow 1-2cm differs due to manual measurement.