Die-Versions are thin, chemically-etched dies. They are compatible with most die-cutting systmes like Sizzix, Spellbinders, Cuttlebug and Quickutz. They are designed to cut cardstock, vinyl, vellum, foam, thin chipboard, cork, metallic paper, felt and more. Each die comes with a piece of ejection foam. Made in the USA and 100% lead-free.