CottageCutz thin metal dies have been designed to cut all sorts of paper types from thin printer paper to thick cardstock, adhesive backed paper, vinyl and vellum.
Without the ejection foam, the dies can deliver more force and cut additional materials such as lightweight chipboard, cork, craft foam, thin metal / metallic paper, and very stiff/thin specialty fabrics. Shims may be required on some machines.
Ejection foam is included with CottageCutz dies so that paper will not get stuck inside the die's cutting knife edges. The ejection foam also helps distribute the pressure. Simply peel the backing off the foam and place over the die (the side with the ridges). Align the foam so it is matched up with the die. Press it on with your fingers then insert it into your die-cutting tool. Run the die through your tool without any paper. You may also peel off the excess foam around the edges of the die.