The listing, Spellbinders Nestability Die Cut Templates has ended.
BNIP Spellbinders Nestability Die cut template - circle crown pattern - set of 4! According to the package, these can be used with most leading die cut machines! They can be used to cut shapes, emboss detail into diecut shapes, and stencil through the die template for added impact. The url below is to the FAQ from the Spellbinders site, which should give you some indication of which systems this will work with. (I am providing this for information purposes only, I have no affiliation with the company)