1. Material: Metal, Metal ball on top of its plastic body. 2. It is the most versatile technique in a paper crafter’s toolbox. 3. It can be used to add texture, dimension many different types of paper crafts that once you learn how to do it, you’ll never run out of creative possibilities. 4. It is used for Modeling Ball Tools, Curling tool, Paper Curling Tool, 3D Paper Craft Tool, Scrapbook Tool, Embossing tool, Fondant Tool, Sugar Paste Tool.5. It can also use on soft metals and paper, on clay, sculpture, paper flowers, and other art craft projects.