f 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. Different color of the bracelet has different meanings. Band color white stand for making poverty history. Yellow stand for livestrong. Black and white stand for standing up and speaking up. Blue stand for beatting bullying. Pink stand for supporting knowledge strength. Blue and white stand for one world one cause Blue and green stand for say no to sectarianism. Also a silicone bracelet can be used as a promotional item for entertainment or sport. It is hot sale as a advertisement gift. plain with a customized logo. Your logo or text can be printed on the surface ocustom made lanyardsf the blank wristband with the silicone based ink by the silk screen printing technology. We make a unique printed mold for one design. The lines of the logo is printable clearly with the smallest 0.1mm width. This kind of silicone wristband is especially suitable for personalizing complex logo. And it touches smooth the pricustom made lanyardsnted wristband style. When the wristband is 202mm length and 12mm width, the tattoo should be 200mm length and 10mm width at the mas. At the mean time, you can add some text in the middle. All the tattoo can be one color or mutil colors. It is the best way the expree your idea of the tattoo bracelet with the printed method.