ng UV light. It transfer 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 raycheap custom wristbands no minimums, 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 ss is usually for retailers purchasing product from factory. They get product with bulk packing and then pack them with brand before sending to market. In our store, you can creat silicone wristband all in wholesale price with your own design even 1 pcs. Why we can do it ? We have our own designers, so we can make all the digital proof free, no matter you order or not. We have our own factory and reliable suppliers for the raw materials. We can get cheaper price of silicone rubber for large quantity as we produc thousands wristband per day. We have advanced machines, skilled workers and efficient production process. We get low negotiated price from the courier. So we sell the wristbands in wholesales price. So how to buy it? You can place acheap custom wristbands no minimumn order directly on our website or we place it for you. All the detail needed is wristband style, colors, size, quantity and the message or logo on the wristband. We will make digital proof and send for confirmation before mass production. Welcome to place the order.