These dies are more of 100% high- quality steel, compatible with most die cutting machines (sold separately) and will inspire you to create cute crafts! This package contains Pivot Pop-Up: a set of nine metal dies measuring between .375x.875 inches and 5.75x2.25 inches. WARNING: Choking Hazard. Not suitable for children under 3 years. WARNING: May contain items with sharp edges. Handle with care. Made in USA.