If you think this shaker looks good in daylight, wait till you see it in the dark. It will glow up like a holy grail. That’s why we like to call it The Illuminati amongst our shakers. Like all of our products, this shaker is bullsh*t free: No toxics and no BPA so can shake, drink, rinse & repeat into infinity. Fill it up to the rim with your favourite GUICE flavour, and it’s glow time.