Memory Box Merry Christmas Wave Dies are made from durable steel and compatible with most die-cutting machines on the market. You can use these dies on various materials, including cardstock, felt, fabric, or shrink plastic. They offer the flexibility to cut, stencil, emboss, and unleash creativity. From the Yuletide Collection, this set includes two wafer-thin dies, each approximately 3.3 x 2 inches. The design features a cut-out "Merry Christmas" with a background die for adding a different color.