g 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 rubber band braceletshourwristbands.ca/upload/2019/20190425/162733_8275.png" width="350" height="350">rubber band bracelets Friendship is a kind of emotion from two-way relationship, that is, the emotions condensed by both sides must be maintained together. Friendship is the source of happiness. Sociologists point out that people of different income and social status have their own happiness, largely because of the existence of friendship factors. When you are in our website, it is easy to make friendship bracelets step by step. Choose the style from debossed, embossed, colorfilled, printed, embossed , dual layer, figured and full color. Choose the size from 202mm for adult, 180mm for youth and 150mm for toddler. Width from 6mm, 12mm, 19mm and 25mm. Choose the color for bracelet and logo and enter the logo and message on bracelet. You can put names, slogan or logo on the bracelets.