This set of four reusable cups are a beautifully designed solution to single-use plastic party cups. 

Pour something cold into these Colour Changing Party Cups and watch the magic happen. It’s the easiest way to impress everyone without even trying. Frank Green's magic colour changing technology will instantly change colour when you pour in ice-cold liquids

Four reusable cups, four colours, four unique colour changes

Stack ‘em, pack ‘em, bring the fun anywhere

Made with over 95% recycled stainless steel

Premium feel, made to last, planet-first

BPA free, FDA & EU approved safe materials

Lids and reusable stainless steel straws sold separately