owder can be added into the band body or the ink for the printed or debossed colorfilled style bracelet. The glow powder is eco as well as the silicone material bracelet. When absorbs enough strong light before being put in the dark, it glows blue, green or red depending on the style of the glow power. The glow will last for hours and gradually weaken. But when reabsorbs the light , it glows again like original shows. It is the most favorable item for the night event. It looks so good in the dark reflecting the logo custom. Hope this can help you for the glow in dark silicone bracelets. A uv silicone bracelet can transfer its color darker under sunshine when absorbing uv light. It is not only with good looking appearance but also indicating the strength of the uv index. So some uv silicone bracelets made as the indication with the ruler of levels of index. Wearing on the wrist to avoid long time staying under strong uv. So what makes it uv transfer ? The answer is the UV phosphor which use uv energy to open the sensitive molecular bond and make it jump from low energy to high energy level There will be a change from visible light to visible light, resulting in the changing color from light to dark. It become a uv silicone bracelet when the UV phosphor is put into the silicone mass and produce it a band. usb-wristband-wholesaleunder-armour-silicone-wristbands s"hands and causing the phenomenon of sliding balls . Because it is made of high-grade and environmentally friendly silica gel , it can effectively absorb sweat from human body and prevent sweat from flowing into players"hands to cause the phenomenon of sliding balls . 2.In order to facilitate team identification . Street design your own silicone braceletbasketball is popular in the United States. As unknown players , in order to cooperate in the game, they need to distinguish who is their teammate , and their mark is the color of wrist band .Street players often have four to five different colors of wristbands in their pockets for the convenience of team formation . 3.To convey the wearer"s beliefs .Nowadays , people have more speech rights , and there are many ways to express their thoughts and beliefs . Because the DIY of cute rubber band bracelets is very flexible , it can engrave LOGO words that peopledesign your own silicone bracelet want to express on the wristband , so as to achieve the function of conveying beliefs by the wristband . So silicone bracelets are being sought after by more and more people . Silicone bracelets have a variety of colors and styles . People can choose their favorite colors and styles according to their own preferences . Wearing your own clothes after wearing silicone wristband can play a very good decorative role .