This package of Alphas Thickers is part of the Sweet Rush Collection designed by Vicki Boutin for American Crafts. This package includes two sheets of alphabet stickers, the numbers 0 through 9, and various punctuation marks for a total of 148 pieces. These stickers are printed on chipboard. These stickers can be used to make cards, scrapbook pages, tags, journals, planners, and other paper crafting and mixed media projects. These stickers are acid free.