This corner cutter features a plastic casing with a smooth, sturdy surface free of burrs, ensuring comfortable and safe use. The stainless steel blades are sharp, ensuring precise cutting. The tool is compact, making it easy to carry around, and offers three corner radius options: 4mm, 7mm, and 10mm, allowing you to select the appropriate radius for your paper crafting needs. To use, place the corner of the paper you wish to round into the slot, ensuring it fits snugly. Press the handle down to cut. You can flip the cutter over to check if the paper corner is properly aligned. It can easily cut cardstock, photo paper, kraft paper, and more, making it suitable for a variety of paper crafts, including greeting cards, photo albums, business cards, invitations, scrapbooks, gift tags, and more. Suitable for use in offices, schools, homes, and photo studios, this corner cutter is a versatile addition to any crafting or office setup.