The package comes with an adjusting tool, that allows you to choose the specific tightness for each of your projects or your own personal preference and a scale that shows both inch and cm. Other than that, the gauge duplicator is extremely flexible, it has hundreds of ABS plates that move to shape any irregular shape you need. Like small pointy triangles, soft round shapes, and squares. It also works on wood, metal sheets, when doing home remodelling, construction, flooring, or when you are laying tiles. The gauge will help you replicate the shape you need and make an instant template and exact outline.