Upgraded running luminous band with three luminous modes! These armbands are available in seven colours which can be easily set to flash or shine a solid light to protect you at night either cycling, jogging, hiking or rambling. An adjustable strap means the bands can fit almost any arm size and with the plastic clip can also be attached to bikes, bags or even tents for great visibility at night or in poor visibility. High quality slim fit 25mm reflective material lets people at work or in traffic be seen earlier, giving vehicle drivers more time to take evasive action helping to prevent or reduce the risk of accidents. Single Strip LED light for the added safety. It can run in three modes: slow flash, flash or long light. Enhanced visibility and increased safety - perfect choice for runners, cyclists, horse riders, commuters, skiers and pedestrians such as school children or dog walkers. It is also ideal for all workers who are exposed to dangers during their daily work, working in environments that involve many hazards from moving vehicles and increased risk of accidents because of poor light conditions. Adjustable fastening guarantees ease of use and universal fit. Can be fastened around wrists, ankles, bags, backpacks, bicycle frames, saddle stems. Stays securely in place even during rapid movement. Perfect for use for all kinds of sport activities, even as trouser clips to keep them away from the chain when riding a bike. Lightweight and comfortable to wear without restricting movement and won't cause chaffing even when worn directly next to the skin. 7 Colours to choose from,there is also one that can emit colorful light. Dimensions: Length: 325mm x Width:25mm (Adjustable) Specifications: Products: reflective lattice luminous armband on black background Colors: red, yellow, blue, green, orange, pink, white and colorful Material: webbingandreflective materialandlight guide stripandcontroller Light emitting mode: long light, flash, slow flash Dimensions: 32x2.5CM Weight: about 30g Battery life: 60 hours (depending on usage) Power supply: 2xCR2032 battery Usb running bracelet battery capacity: 40mah Note: Due to different production batches or different shooting light and display, please allow an error of 1-3 cm for manual measurement. There may be slight differences in color and details, but please rest assured that this will not affect the use effect. Package Included: 1xreflective lattice luminous armband on black background or Usb model:1xreflective lattice luminous armband on black background 1xusb charging cable