10 Slimline Card Builder Die Set from Paper Discovery. This 10 piece die set features elements to create a slimline card, slimline sized decorative panels, and additional square and circular panels. When working with larger cards or scrapbook pages, you can use the panels side by side. They can also be layered together or used independently! Perfect for our Slim Line Cards & Envelopes. Designed by Olga Direktorenko.