The Birch Press Design Oak Leaves Contour Layers Dies are crafted from durable steel and compatible with nearly all die-cutting machines. These versatile dies can be used on materials such as cardstock, felt, fabric, or shrink plastic, giving you the flexibility to cut, stencil, emboss, and bring your creative ideas to life. The set includes 4 wafer-thin dies that cut out 12 designs, allowing you to create a large oak leaf, twigs with leaves, and acorns. The dimensions are approximately 1.9 x 2, 1.5 x 1.6, 1.3 x 1.7-inch leaves, and two 0.5 x 0.7-inch acorns.