Cool Katz Craft Cutz Clever closures - Slit slot die set100% stainless steel, teflon coated easy release die set. The small dies are designed to cut directly into the paper card to create a "slot". Three matting die plates plain, stitched and pierced edges, the dark blue plate cuts dies to "mat" onto the larger mats from the other plates. Use these to add another dimension and difference to album and memory book pages, use as ribbon slots, page closures, hinges etc.