The silicone rubber wristbands are made of 100% pure natural solid silicone rubber pressed by an oil press; the product itself has certain tension and softness, so it is easy to deform and recover immediately; silicone rubber wristbands have the characteristics of wear resistance, high temperature resistance, non-distortion, non-toxicity, odorless, no side effects on human body, and soft, non-cracking, long service life, non-irritating skin, etc. The silicone rubber wristbands are real green product. Some customers do not meet the usual size, we can also customize a thicker and wider size, of the thick rubber wristbands, the thick rubber wristbands’ size should be generally 25 mm width, and 2.5 mm thickness is enough. Thicker silicone bracelets will cost a little more, but the texture will be a little better than 2 mm thickness. where-can-i-buy-yellow-wristbandsbuy-wristbands-custom logo wristbandsnear-me 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 prcustom logo wristbandsoduce 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.