rubber wristband has advantage of favorable price, soft to touch and long lasting, so it is very popular. Let me talk something about UV rubber wristband. A UV rubber bracelet can transfer it’s color darker under sunshine when absorbing UV light. It transfer to purple or blue normally which indicating the strength bottle openerof 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. We make the UV transfer wristband with silicone material original colors. So it look like jelly with translucent. The it gets to purple or blue in the sunshine, so cool it is. All bottle openerstyles of logo we can customize on it, debossed , colorfilled, embossed, embossed printed or print. And the size we can make is adult , women, youth and toddler. The there is anything unclear, please go to our category at which we will show you all. silicone-wrist-braceletscustom-friendship-bracelets ion teachers and students . It is not only a teaching material penetrating moral education, but also an equipment for organizing teaching . Silicone wristband enhances the interest of physical education classroom teaching , stimulates students"enthusiasm for sports and improves the teaching efficiency of physical education classroom . A silicone bracelet can be obtained when a student is praised for winning in various activities and competitions of classroom teaching . After class , the class cadre and team leaders can count the students"award-winning situation and take back the silicone bracelets . When a student receives 10 or more bracelets , the teacher can award the student a silicone bracelet as a gift . Custom charm bracelets can also be used as teaching equipment of organization teaching . In physical education , teachers can distribute different colors of silicone bracelets to each student . When grouping activities are needed , teachers only need to give simple prompts , so that students can quickly and accurately find their own group . This will inevitably reduce the tedious language descriptions of the teachers when grouping , and greatly increase the activity time of the physical education classroom .