Description: ONE SIZE FITS ALL: Our arm light is designed to fit both men and women; Versatile: The strap is very adjustable and fits comfortably on the leg or ankle, arm, and easily attaches to bike hat or even backpack, or You can use it however you want EASY TO USE: This light is made of different polymers. The running gear is very light, tactile and very flexible. Change the light between steady mode and flash with just one click. BE SEEN: Whether you're running, biking, walking the dog or doing any type of nighttime activity, make sure you're seen! WIDE APPLICATION: Bright, comfortable, soft, easy to use, user friendly, fully adjustable and versatile. Suitable for adults, children and pets, great for running, jogging, walking, strolling, cycling, hiking, camping, parties, raves, holidays, festivals and concerts. GIFT CHOICE: This is the perfect glowing LED accessory gift for family and friends to make their lives fun and easy. Specification: Material: PP, PVC, Silicone, Elastic band Size Chart: 18.5cmx3.7cm/7.28inchx1.46inch Package Includes: 1 Light Up Armband(3 Pack) Note: Please allow slightly errors due to manual measurement and different monitors.