green to human. The glow will fade gradually in about 3h depending on how much light it absorbs. The logo can be same as regular debossed, embossed or printed on the glowing wristbands. A UV silicone bracelet can transfer it’s color darker under sunshine when absorbing 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. A mosquito repellent silicone wristband is very useful to protect ourselves from the mosquito. It is made from high quality silicone together with lemongrass, lavender, clove and other natural plant oils. And the natural plant oils is the reason why it is mosquito resisting. A mosquito repellent rubber bracelet is comfortable to wear on the wrist or leg as its good air permeability . It is designechristian wristbands siliconed as non contacting type of the controlling module so safe for adult and kids. d white stand for one world one cause Blue and green stand for say no to sectarianism. Also a silicone bracelet 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 jewellechristian wristbands siliconery. After proper dewatering , the silica gel mSiO2?nH2O become a porous mass that is of different particle size. This is so called the silicone. The silicone has the open vesicular structure , large specific surface. So it can absorb many substances as a good desiccant, adsorbent and catalyst carrier. Adsorption of the silicone is mainly the physical one that can be regenerated and good for repeated use. Let the silica gel soak in the cobalt dichloride solution then get it dried and activated , will become the allochroic silica gel. It will transfer from blue to red color when absorb water. Changes in color shows the degree of water absorption and whether need the regeneration treatment.