chip putting in the rubber band part. The biggest advantage of the digital rubber wirstband for sports is the high step counting accuracy , more stability of 50 meters waterproof , the long life time built-in battery and also comfortable and ducheap custom keychainsrable as it is the silicone made material. A sport digital rubber wristband is the assistant of good health to remind you of sporting. Energy rubber bracelte is one of the rubber bracelet made from rubber which is blending the energy powder in the manufaturing process or insert energy particle after manufaturing. Energy rubber bracelets is popular in the United States first and then all around the world. Energy rubber bracelet is made with the characteristics of rubber like tasteless, non-toxic, long life, does not stimulate the skin, good flexibility. The energy bracelet can be customized as debossed, embossed or plain printed style. The combination of a variety of fashion elements make the rubber bracelet become popular fashion jewelry. 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 colorcheap custom keychains when absorb water. Changes in color shows the degree of water absorption and whether need the regeneration treatment. The bracelet is generally used as ornaments or jewelry, now more and more people use the bracelet to do business promotional gifts, souvenirs, gifts and so on. Currently a kind of silica gel made silicone bracelet is especially popular on the market. A silicone bracelet : 1, soft and comfortable to wear. 2 a customized LOGO is used for printing, promotional gifts, business gifts, or gifts. 3, incorporation of negative ion powder in the silicone bracelet has been reached to care for the human body,like promote blood circulation, anti fatigue and other health and body balance effect. This kind of bracelet is also called energy bracelet.