How does it work? The specially designed paper releases the ink when it heats up. The ink goes from a solid state from the paper, turns into a gas, and infuses into your tumbler. Upon cooling, the ink changes from its gas form, into your solid graphic on your tumbler.

The DIY tumbler is both fun and relaxing, and something you can thoroughly enjoy, time and time again. Glowsip tumblers are the perfect gift to give when you want to give something more personalized and or customized while still being a useful gift.