Cricut Ion On UV Colour Change Pastel Red 12x19 Let the sun transform your designs with Cricut® UV-Activated, Colour-Changing Iron-On. This marvelous material changes Colour when exposed to sunlight, making it ideal for apparel, accessories, and outdoor decor. With Cricut Iron-On, intricate designs are simple to cut with your Cricut machine, and you'll weed with ease to prep for flawless application. Fun phrases and delightful designs are all just a cut and a press away. For use with all Cricut cutting machines. For best results, transfer using Cricut EasyPress. Care Instructions Apply to pre-washed and fully dried materials only. Allow 24 hours after application before washing. Machine wash cold inside out, tumble dry low. Do not bleach. If you need to iron, only iron on the backside of the garment.