Come and see our amazing products. Material: Silicon gel, lightweight, soft, flexible and extremely easy to wear. 2 light modes: Lasting model and flashing model, can support about 80 hours. Which also could be changed easily. Multi use: Has a adjustable washable strap and can be worn as an armband, on the leg or ankle, a trouser clip, attached to a bike helmet, to a backpack and much more. Suitable for jogging, walking, cycling, running and other outdoor activities need a safety light at night. Nice option for ice rink, hip-hop performances.Flashing LED lights are visible from a long distance and looks very cool, which will protect you from oncoming cars, cyclists and pedestrians. Pls confirm further with us if any query about packing info, inventory status and time schedule.