Precise WPI (Wraps per inch) tool - easy to hang from your wheel or stash in your spinning bag to check WPI as you spin.
To calculate WPI wrap your yarn or single comfortably between the 0 and 2 (not loose, not tight). Divide the number of wraps by 2 to calculate WPI.
Contains 16 lines to quickly approximate your WPI by lining up your single or plied yarn to the matching line. Guide lines for 6, 8, 10, 11, 12, 14, 16, 18, 20, 22, 24, 28, 32, 36 and 40 WPI
This WPI tool is made from 1/8" cast acrylic in a variety of colors - select your color choice!
Dimensions: 2.125" x 4" inches
The listing picture is a representative sample of the WPI tool offered.