ling oil and non-spraying hand-feeling oil is very different . Some novice friends don"t know the word "fuel injection" . The main purpose of fuel injection is to coat the surface of the product with a coat of paint to make it more comfortable for customers to wear . Oil injection has a good effect on the dust-proof and sticky-proof properties of silica gel bracelets . For example , some customers will ask us why the silicone wristmake rubber braceletsband are often covered with dust . Actually , the reason why rubber bracelet often stick to dust is that they don"t have any spray hand-feeling oil . The effect of silicone bracelets sprayed with hand-feeling oil is hard to see with the naked eye , and there is a distinction between the wristband sprayed with hand-femake rubber braceletseling oil and non-spraying hand-feeling oil when we touch it . The main features of oil-sprayed silica gel hand rings are smooth handle , high surface finish and smoothness , no dust contamination . Silicone hand rings without spray-feeling oil have low gloss , feel less smooth with hands , and their service life is not long . ts including the ones for special needs. It 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, address, 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. If the 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. It is for special needs like Alzheimer, Dementia etc. Order over than 100 get 100pcs wristbands free & 10pcs keychains free. Order less than 100 get 50pcs wristbands free & 5 pcs keychains free. Welcome to place an order here.