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. 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 scustom logo keychainstanding up and speaking up. Blue stand for beatting bullying. Picustom logo keychainsnk 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. and sales team. We produce tens of thousands wristbands per day, so we can get super wholesale price from the silicone factory. Silicone wristband is good item for promotion and other event. Its advantage is low price and durable and comfortable to wear. And also most importantly, it is easy way to meet the request. It shows up a slogan and logo. We can match all the pantone colors, for the band color and logo color. The band can be solid, segment, swirl, glowing and UV transfer. Solid is regular and classice. Segment and swril is popular for camp, it can be a rainbow or camoflag wristband. Glowing wristband can glow several colors, it is the best for night event like bar party, concert or night walk. UV one is for outdoor ativities, it can indicate the UV index by changing its color from transparent to blue or purple under the sunshine. 10% discount is being offered using coupon code SAVE10 now. We have thousands of clients, all you need to do is to show us your idea on bracelet, and we can do it for you.