This Colorbok Chipboard Punchout Embellishments pack is acid/lignin free.  There is no adhesive backing on this item and they are ready for you to use on cards, tags, scrapbook pages, shadow boxes, planners, journals, home, office, school or can be used on any project. There are 40 pieces in all so, just punch out and use your favorite adhesive to adhere.  This package measures approximately 9" x 11".