Cricut Premium Vinyl Permanent Colour Change Hot Blue 12x24 Make it change with Cricut® Heat-Activated, Colour-Changing Vinyl. This magnificent vinyl material transforms Colours in temperatures above 88ºF (31ºC). Apply it to your favourite mug or bowl, then add something hot and watch the design change Colours before your eyes. Choose from a variety of Colour combinations. Cricut Vinyl is designed to exceed your expectations it's easy to weed and effortless to apply with no tunneling or bubbling. Even the most intricate designs separate with ease from the carrier sheet for worry-free application. For use with all Cricut cutting machines. Hand wash only.