ransfer to purple or blue normally which indicating the strength of the UV index. Wearing it on the wrist is a good way 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 use 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 can do that? Because we have our own factory, together with production team, designing team and sales team. We produce tens of thousands bracelets per day, so we can get super wholesale price from the silicone factory. 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. Rubber bracelet is good item for promotion and other evgold rubber band braceletent. Its advantage is low price and durable and comfortable to wear. And alsgold rubber band braceleto 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 bracelet 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. Order less than 100pcs, get 50pcs free and 5pcs keychains free. Order 100pcs or more, get 100pcs free and 10pcs keychains free. All the free wristbands and keychains are same design of the one you order.