Wraps per Inch Gauge
This tool is used to determine the WPI (wraps per inch) of a particular yarn.
Measure in 2 ways:
- use the notch at the top of the tool. Wrap the yarn around so it rests in the notch and then count the number of wraps.
- hold your yarn in front of the bars on the center of the tool, matching it to the window that has the most similar width.
Each bar is labeled with the WPI that the width corresponds to, as well as the name of yarn weight.