Lawn Fawn custom craft dies are made of 100% high-quality steel, compatible with most die-cutting machines, and will inspire you to create cute crafts! This package contains Outside In Stitched Heart Stackables: three dies measuring between 1.25x1.25 inches and 4.125x3.75 inches. WARNING: Choking Hazard- small parts. Not for children under 3 years. Made in USA.