ow in the dark promotional rubber wristbands and so on . Each type of bracelet has its own charcolorfilled wristbandsacteristics . Such as the glow in the dark silcolorfilled wristbandsicone wristbands can shine in the dark when it absorb enough light , the UV silicone wristband will change its own color when it absorb ultraviolet rays . Due to different production processes , There are also differences in the quality of rubber band bracelets . Is there any good way to distinguish the quality of rubber bracelet ? Of course , just like the traditional Chinese medicine treatment in China . We can also use four methods to judge the quality of silicone bracelets: look, smell, ask and touch . 1.Look ( Appearance of rubber band bracelets ) Check if there are any dirty things inside the silicone bracelet , such as some color deviation , printing errors , whether the diameter of the bracelet is regular , whether the edge of the bracelet has surplus colloid . Generally, the edges and surfaces of high quality silicone hand rings are very smooth . 2.Smell ( The odor of rubber band bracelets ) Silicone bracelets are generally odorless. During the test, we can use fire to burn silica gel bracelets, high quality silica gel bracelets the residue after combustion is powder . The inferior silica gel bracelet has a bad smell after burning . 3.Ask ( Raw materials for rubber band bracelets ) We can ask the supplier whether silicone bracelet are made of pure silica gel . 4.Touch ( Touch the surface of silicone wristband ) The surface of high quality rubber band bracelets is very smooth and it"s very elastic . lled) bracelet. The printed bracelet is conventional one with the color silk printed on the band. It feels plain and smooth. It is suitable to design a colorful logo with the technology of overprint of tiny deviation. But the color logo will be easier fade away than the debossed inkfil one. The embossed (or with color printed) bracelet with the effect of raised lettering with color to let your message and logo stand out. But if the logo is continuous, there can be just one color printed. And if the logo or lettering is separated into two part individually on the front and back of the band, 2 colors printed available. Debossed (or with color filled) bracelet is engraved lettering and color filled（ink injected），there will be a deep cut effect of your personalized message. The logo can be inkfil with more than 2 colors depending on the design. And the ink injected will last longer. Different color of the bracelet has different meanings. Band color white stand for making poverty history. Yellow stand for livestrong. Black and white stand for standing up and speaking up. Blue stand for beatting bullying. Pink stand for supporting knowledge strength. Blue and white stand for one world one cause Blue and green stand for say no to sectarianism. Most of the silione bracelets are of no meanings , people wear it just as a popular jewellery.