ust , hair and other impurities. Third, when it burned with fire, the false silicone bracelet will come up with the black material on the edge while the true one shows white powder. And final, tell a reliable method to clean the bracelets. Get it soak in warm water for 3-5min, rub a few and add the detergent if necessary. Then all done after drying by air. 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 cometal carabiner clip keychainbalt 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 metal carabiner clip keychaintreatment. ristband came to the world in US 2005. It is the yellow “LIVE STRONG” silicone rubber wristband resisting cancer. LIVESTRONG rubber wirstband was adorned by Armstrong who suffer from cancer. He shows us the strengthen and brave facing the disease. From then on, it become a promotional item widely used. Now we can also make our message to express our desire on a custom silicoen wristband. The market is large since the wristband can be used almost in all fields. It is slighly costomized. We can put the logo and slogan on it and it is easy to read. Like in daily life, we make rubber wristband for team sports, birthday party, anniversary, wedding and so on. For bussiness promotion, we make it for trade show, school camp, fundraising and so on. Big sales now order over than 100 get 100pcs wristbands free & 10pcs keychains free. Order less than 100 get 50pcs wristbands free & 5 pcs keychains free.