ONE SIZE: our arm lamps are designed to fit both men and women; Versatile: can be worn comfortably on the leg or ankle, arm or as a dog collar, can be easily attached to a bike helmet or even a backpack, or you Ready to use (4 x button cell batteries) spares included) This safety lamp is made of different flexible polymers. Running gear, extremely light, tactile and flexible. Change the light between steady mode and flashing light with just one touch, the Velcro strap is adjustable and comes with an extra reflective strip, it's the perfect gift for family and friends to change their life in a fun way and easy; most important, parents, make sports fun and engaging for kids Be seen and protect your life - whether you're running, biking, walking the dog or doing a night activity, make sure you're seen ! Don't be disturbed by the car, just put the LED armband on your arm, ankle or leg. With the position lights you can attract the attention of unknown drivers from over 300 meters away Super bright, comfortable, soft, easy to use, user-friendly, fully adjustable, versatile use. Suitable for adults, children and pets, for running, jogging, walking, walking, biking, hiking, camping, parties, raves, vacations, festivals and concerts