a good way to avoid long time staying under strong sunshine. We add UV powder which is also green as silicone in production. The UV powder is kind of photochromic material. We use it to make this change. Photoreceptor color is irradiated by ultraviolet or sunlight, absorbs ultraviolet or sunlight, and produces changes in color. When it loses ultraviolet or sunlight, it returns to the original color. Photoreceptor products, after sunlight or ultraviolet radiation, can absorb the energy of the sun or ultraviolet rays, produce changes in the molecular structure, lead to changes in the absorption wavelength, and produce color changes; when the sun or ultraviolet energy is lost, the original molecular structure is restored and the color of the cost is reduced. Application of photosensitive discoloration material: coating, suitable for various surface coating products, including PMMA spray paint, ABS spray paint, PVC spray paint. Ink, printing of various materials, including fabric, paper, synthetic film, glass, etc. Plastic products, suitable for various kinds of plastic PP, PVC, ABS, silicone rubber and other materials, such as the ejection, out of shape. custom-camo-silicone-wristbandscool-silicone-wristbands Elderly need health care more than other people. In the aging process of the elderly, functional deterioration and disorders occur, such as Alzheimer"s disease, senile psychosis, senile deafness, cerebral arteriosclerosis and the resulting stroke, etc. We can make a id bracelet for elderly. There will be the name printed on it. We can make a QR code so When you scan the code with a phone, the detail of name, disease, status will show up. It is fast to get help when emegency comes. It can be a reminder wristband. We can pricustom rubber keychainsnted some tips like when to have medicine, which is the food can not eat and so on. It is helpful for daily life of elderly. We can make the wristband all pantone colors. It can be solid, swirled, segmented, glowing and UV tranfer. The size can be 180mm, 190mm or 202mm. Hope this help you to know more about id bracelet for elderly. make all the designs for free. If you need to put your logo on wristband, JPG, PDF or AI file is appreciated. Our designer is skilled to transfer it into the digital proof. All we do for designing is free no matter you place the order or not. We are integrity of making and selling. Low price, good quality and service is our rule. If order less than 100pcs , get 50pcs free , order more than 100pcs , get 100pcs free. The free are of same design as ones you order. Large amount, more favorable price. No MOQ here, even 1pcs we will make. Due to the prompt service of FedEx, UPS and DHL, we are able to make a 2 days order. Super rush order of custom rubber keychains1 days production and 1 days shipping is available. It helps you achieve your promotional event. We are always on line for your order and inquiry, 24 hours a day, 365 days a year. You could contact us via live chat, hot line and email. We will inform you the tracking number once it is ready.