From the Manufacturer:
Creative Photo Corners hold only the corners of treasured photos, memorabilia, documents and art. Simply align corners of media into Creative Photo Corners and apply to project.
Use Creative Photo Corners to accent and secure layers of papers on cards, scrapbooks and school or office projects. Creative Photo Corners create a focal point to highlight special details.
Align Creative Photo Corners to make borders and patterns. Stack, layer and mix and match for a dramatic look. Create design elements such as roof tiles on a birdhouse, or scales on a fish, or feathers on a bird.