ay to avoid long time staying under strong sunshine. We add UV powder which is also green as silicone in production. The UV powder is kind of photochromic material. We uscustom keychainse it to make this change. Photoreceptor color is irradiated by ultraviolet or sunlight, absorbs ultraviolet or sunlight, and produces changes in color. When it loses ultraviolet or sunlight, it returns to the original color. Photoreceptor products, after sunlight or ultraviolet radiation, can absorb the energy of the sun or ultraviolet rays, produce changes in the molecular structure, lead to changes in the absorption wavelength, and produce color changes; when the sun or ultraviolet energy is lost, the original molecular structure is restored and the color of the cost is reduced. Application of photosensitive discoloration material: coating, suitable for various surface coating products, including PMMA spray paint, ABS spray paint, PVC spray paint. Ink, printing of various materials, including fabric, paper, synthetic film, glass, etc. Plastic products, suitable for various kinds of plastic PP, PVC, ABS, silicone rubber and other materials, such as the ejection, out of shape. custom-camo-silicone-wristbandscool-silicone-wristbands 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 bracecustom keychainslet can be used as a promotional item for entertainment or sport. It is hot sale as a advertisement gift. Most of the silione bracelets are of no meanings , people wear it just as a popular jewellery. With the long term use of a rubber wristband, we will find it full of dirt things. So how to clean it become a question. Here a simple way for cleaning. First place the rubber wristband in warm water for 3-5 minutes. Then gently rub it a few and put it to cool dry place. Detergent is recommended if the previous method does not work. bulk-order-wristbandsbeing-human-wristband-online esulting stroke, etc. We can make a id bracelet for seniors. There will be the name printed on it. We can make a QR code so When you scan the code with a phone, the detail of name, disease, status will show up. It is fast to get help when emegency comes. It can be a reminder wristband. We can printed some tips like when to have medicine, which is the food can not eat and so on. It is helpful for daily life of seniors. We can make the wristband all pantone colors. It can be solid, swirled, segmented, glowing and UV tranfer. The size can be 180mm, 190mm or 202mm. Hope this help you to know more about id bracelet. Order over than 100 get 100pcs wristbands free & 10pcs keychains free. Order less than 100 get 50pcs wristbands free & 5 pcs keychains free. Welcome to place an order here.