This package of 45 Puffy Shapes Stickers, Blue Jean Heart, is part of the Monochromatic Collection from Doodlebug Design. These hearts are self-adhesive stickers, there are three color variations within the set, and there are three sizes of hearts. These puffy shape stickers can be added to cards, scrapbook pages, tags, journals, planners, art journals, and other paper crafting, home decor, and mixed media projects.