the ink for the printed or debossed infil 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 usd 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. Silicone wristband is only harubber band bracelets where to buys a history of 15 years and it play important role in our daily life. The first rubber wristband came to the world in US 2005. It is the yellow “LIVE STRONG” silicone rubber wristband resisting cancer. LIVESTRONG rubber wirstband was adorned by Armstrong who suffer from cancer. He shows us the strengthen and brave facing the disease. Now we can also make our message to express our desire on a custom silicoen wristband. It grows to be a good item for promotional events, sports, camp ativities, rubber band bracelets where to buyanniversary or so on. The silicone rubber is eco friendly material. A silicone wristband is made by the hydraulic press machine from 100% high quality silicone rubber. It will deformed and immediately restored as it’s tension and flexibility. Silicone bracelet is a real green jewelry with wear-resistant , high temperature resistance, no deformation and no side effects on body.