let trend did last long enough for several NBA players to start sporting them, though. Nike, always with a keen eye on basketball fashion improved on the trend by using the silicone rubber that they had previously used on sports watch bands ansilicone medical alert wristbandsd creating the Nike Baller Id Band Bracelets. Because you can"t really print on silicone, the messages were imprinted or embossed into the rubber and said sports related things like "Baller" and "Player". They came in sets three, often in specific team colors. Many NBA players, most notably LeBron James were seen wearing the Baller ID Bands on and off the court.
In 2004 Lance Armstrong and Nike, who made all of his cycling gear, teamed up and created the LiveStrong yellow bracelets which were essentially Baller ID Bands that were yellow and imprinted with "LiveStrong", the motto of Lance Armstrong"s foundation for cancer research. The bracelets are sold through Nike and Lance Armstrong"s website"s for $1 each and has raised over 28 million dollars for cancer research. Because of the immense popularity of these bracelets, many other charities, organizations and accessories producers jumped on the bandwagon and began creating silicone rubber bracelets in all colors and with all kinds of messages, some for charitable causes, and others just for fun.
A uv silicone wristband can transfer its color darker under sunshine when absorbing uv light. It is not only with good looking appearance but also indicating the strength 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 bsilicone medical alert wristbandsracelet when the UV phosphor is put into the silicone mass and produce it a band.