Simple 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.
Handy line guides for the thickness of fingering, sport, DK, Worsted and Bulky weight yarns is also included.
This WPI tool is made from 1/8" cast acrylic or 1/4" Hardwood Plywood, depending on option selected.
Dimensions: 2" x 3" inches
The listing picture is a representative sample of the WPI tool offered.