This add-on creates a stitched butterfly-shaped window and an intricately detailed butterfly shape for your Ta-Da! Diorama! interactive projects. The lovely butterfly cut from the window opening is also great on its own! Coordinating Lawn Cuts: Ta-Da! Diorama! approximate size:butterfly opening: 2 1/2" x 3" This set has 2 pieces. For more interactive fun, take a peek at the Interactive Lawn Cuts collection. Lawn Cuts custom craft dies are high-quality steel, made in the USA, and are compatible with most die cutting machines!