These are from our colored line of icing sheets (frosting sheets) called ChromaSheets. This item holds a convenient pack of 10 ChromaSheets (each sheet is 8 inch x 13 inch). Our ChromaSheets are Extra Thick for easy handling and design cutting and work great with electronic cutting machines such as Cricut, Silhouette, Zing and others. They also work perfectly with edible inks so you could print to them too (they look great when printed to with Inkedibles edible inks, these can be printed to as well), and come with a peel-off backing that is easy to remove when you are ready to apply the ChromaSheet to your cake. ChromaSheets apply easily onto buttercream or whipped cream (preferably). They can also be applied to other cake toppings such as rolled Fondant, chocolate candy or Royal Icing. Their shelf-life once on a cake varies from 1 day (if applied to whipped cream) to a few days (if applied on Royal Icing).