Hero Arts - Nesting Circle Infinity DiesThese nesting circle dies allow you to add architectural form and tidy framing to your cardmaking, stamping projects, and more. They are of solid metal construction with a sharp and durable cutting edge. Designed to work with most papers and other thin materials. Set contains 18 metal dies; the largest measures 4. 5" X 4. 5", and the smallest is hole punch size.