Postage Collage Mini Slimline Blocks DieThe Postage Collage Mini Slimline Blocks Die is designed to work with the Postage Collage Mini Slimline (panel die). You can also use the frame die on its own to create shaker or shadow box cards! Here are a few ways to use both die sets together: Place the frame die underneath the original panel as a mat layer to make your designs pop. Color, stamp, or stencil in each window cutout separatelyno masking needed! Then stack them over the panel die for a