The Memory Box Happy Birthday Breezy Script 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. The set includes one wafer-thin die that cuts out two designs: "Happy" and "Birthday". The dimensions are as follows: "Happy" measures approximately 2.2 x 1.4 inches, while "Birthday" measures approximately 3.1 x 1.5 inches. With their fun scripted font, these dies add a playful and celebratory touch to your projects, making them perfect for birthday greetings and festivities.