This is a "quilt card. The shape was cut using the Big Shotz Sizzex diecut. I don't have the Big Sizzex, but I do have a Cricut.
I try to buy cartridges that are multi-useful. Accent Essentials has this shape as a frame. You need the Design Studio to size the shape. If you click on the line inside the shape, right click & click on "Hide Contour" you can cut the same shape using Cricut & the Design Studio.