ul life ,when the machine has passed its service life, it will not work anymore .About the logo on the custom silicone bracelets ,it also has a service life . Some styles of custom silicone bracelets can keep logos for a long time , while others can"t keep logos for a long time .Such as the logo on the printed design silicone wristbands is easily worn out .There are so many people have doubt that why does the logo on the printed design silicone wristbands is easily worn out .There are two reasons for the result .The first reason is the ink stays on the surface of custom silicone bracelets .The second reason is when we wear the custom silicone bracelets ,it often rubbed with other objects .So when we wear the printed custom silicone bracelets for a long time ,the logo on the design silicone wristbands surface will gradually be worn out . If you want to keep the logo for a long time ,we suggest you to order silicone wrist band with debossed style and debossed colorfilled style .The reason why these styles of custom silicone bracelets can keep logo for a long time is that logo is sunken on the bracelet ,even if we wear the silicone wristband all day ,because of logo does not rub with other objects ,so it can be kept for a long time .If you order embossed style custom silicone bracelets ,the logo also can be kept for a long time . personalized-rubber-braceletscustomized-bracelets ebossed infil style bracelet. The glow powder is eco as well as the silicone material bracelet. When absorbs enough strong light before being put in the dark, it glows blue, green or red depending on the style of the glow power. The glow will last for hours and gradually weaken. But when reabsorbs the light , it glows again like original shows. It is the most favorable item for the night event. It looks so good in the dark reflecting the logo custom. Hope this can help you for the glow in dark silicone bracelets. A uv silicone bracelet can transfer its color darker under sunshine when absorbing uv light. It is not only with good looking appearance but also indicating the strengtplastic c clips for rubber band braceletsh of the uv index. So some uv silicone bracelets made as the indication with the ruler of levels of index. Wearing on the wrist to avoid long time staying under strong uv. So what makes it uv transfer ? The answer is the UV phosphor which usd uv energy to open the sensitive molecular bond and make it jump from low energy to high energy level There will be a change from visible light to visible light, resulting in the changing color from light to dark. It become a uv silicone bracelet when the UV phosphor is put into the siliplastic c clips for rubber band braceletscone mass and produce it a band. the vigor of the army, a group of veterans retire and recruits join the army every year. For every veteran who leaves the barracks, we must express our respect and blessings from the bottom of our hearts, because each of them devotes his best youth to the construction of our motherland and the cause of national defense. We can make a rubber bracelet to express our support and respect to veterans. The simple way is to print slogan SUPPORT OUR VETERANS on it. We can make it in different colors and logo styles. It can be solid, swirl, segment, dual layer, glowing or UV transfer. The logo can be debossed, embossed, printed ,embossed printed and colorfilled. Order less than 100pcs, get 50pcs free and 5pcs keychains free. Order 100pcs or more, get 100pcs free and 10pcs keychains free. All the free wristbands and keychains are same design of the one you order.