These are dies you can use in a Die-cutting machine like the Cuttlebug, Double Do, Trouvaille etc.
Most of the dies cut as well as emboss.
First cut and then emboss using an embossing mat.
For use in Cuttlebug:
Cut with A, B and C plate. Then emboss with A, B, Embossing mat and other B plate. Use extra shim between A and first B plate or, for a good result, use two embossing mats.