About this 3D model

I designed this bracelet, to help make sure my kids use sun cream! Because they are very sensitive to the sun. I uses Photo Chromatic PLA, from http://3dfilaprint.com http://www.shop.3dfilaprint.com/pla-175mm-white-to-blue-ultra-violet-reactive-filament-568-p.asp which is sensitive to UV lite !!