Precise WPI (Wraps per inch) tool - easy to hang from your wheel or stash in your spinning bag to check WPI as you spin. Designed for fine and ultra fine singles and yarn.
To calculate WPI wrap your yarn or single comfortably between the 0 and 1/2 (not loose, not tight). Multiply the number of wraps by 2 to calculate WPI.
Contains 10 lines to quickly approximate your WPI by lining up your single or plied yarn to the matching line. Guide lines for 20, 24, 28, 32, 36, 40, 48, 56, 64, and 80 WPI
This WPI tool is made from 1/8" cast acrylic in a variety of colors - select your color choice!
Dimensions: 1.75" x 3.375" inches
The listing picture is a representative sample of the WPI tool offered.
Perfect for measuring fine yarns. Thank you!
Mar 4, 2018 by Tracy M
I just can't have enough control cards. I like having a card with each of my wheels and in my kit. This card makes it easy to identify the girth of your yarn while you are spinning to keep you on-track. It also has a nice range of sizes from very small to large.