TRIXES Green LED Safety Band for Walking Jogging Running Cycling For added safety while you are out exercising in low light, such as early morning or late evening. Adjustable hook and loop strap allows you to attach the band to your arm, leg, and on your cycling helmet. Easy to operate, just one button to turn on the LED lights, press once for fast flashing lights, press again for slow flashing lights, and once more for static lights, press again to turn off. Uses 2 x CR2016 coin batteries (included) Features LED lights for added safety Good for outdoor exercise in low light One-button operation, Fast Flashing/Slow Flashing/Static/Off modes Comfortable adjustable band Attach to your arm, leg, or bicycle helmet Contains 1 x Green LED Safety Band