Our 2017 hot led bracelet, is the use of TPU and ABS is composed of two parts, we can make 1 lights, 2 lights, 3 lights, and light color bracelet can be customized, we also use environmental protection inside the battery of mercury free battery, power supply can be used for a long time, the most important thing is to make clear in laser carving the wristband bracelet is light, the light of ascension of the whole of a grade bracelet.