ny styles of the rubber wrist bands .It icustomize keychains precisely because of the variety of styles of silicone hand bands . The criteria for judging their quality are also different .Such as the printed rubber wrist bands ,our criterion for judging the quality of printed rubber wrist bands is whether the logo is clear and the color is correct . There are other ways to judge the quality of silicone hand bands . The first criterion is whether the plastic braclets is made of pure silica gel .The high quality rubber wrist bands is made of environmental friendly pure silica gel ,it has wear resistance,no deformation, no toxicity, no smell and no side effects on the human body .If we want to know if silicone hand bands are made of pure silica gel ,we can judge the quality of it by burning rubber wrist bands . If we don"t smell the pungent odor during the combustion process, and the product after combustion is grey powder ,the quality of the rubber wrist bands is good .The second criterion is whether the color of the rubber wrist bands correct .If the color of the wristband is same as the pantone color card ,the quality of the wristband is good .The last criterion is whether the edge of the rubber wrist bands smooth .A high quality rubber wrist bands ,the edge of it is very smooth . twenty-one-pilots-rubber-bracelettriple-single-rubber-band-bracelet celet is not only used as promotional gift, but also as a medical tool. Medical id bracelets is commonly used. Icustomize keychaint is a high quality silicone bracelets with the ID printed on. We can print bar code, QR code or unique serial number together with some detail of the medical institute. Usually the wristband width need at least 15mm so that the code is clear enough to be scaned. When you scan the code with a phone, the detail of patient name, disease, taboo drugs, status will show up. It is a good help for doctor and patient to know the treatment. All the medical bracelets should made from 100% silicone which is harmless and eco friendly. If the medical id bracelet is embeded with a chip, it will note down the information of exercise, heart beat and sleeping. Then trafer it to the phone app. It contribute to health care.