nd 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 will make it to your satisfaction. We are integrity of making and selling. Low price, good quality and service is our rule. If order less than 100pcs , get 50pcs free , order more than 100pcs , get 100pcs free. The free are of same design as ones you order. Large amount, more favorable price. No MOQ here, even 1pcs we will make. We are always strict in quality of our product focusing on edge cutting, polluted mark . Due to the prompt service of FedEx, UPS and DHL, we are able to make a 2 days order. Super rush order of 1silicone bracelets no minimum order days production and 1 days shipping is available. And we have ability to do international orders, only needs little international shipping fee extra. We are always on line for your order and inquiry, 24 hours a day, 365 days a year. You could contact us via live chat, hot line and email. If you place an order, you can pay it by PayPasilicone bracelets no minimum orderl, credit card or debit card. If you are not pay on line, we are able to send an invoice for which you can pay later. We will make and send you digital proof even it is just a quote.