Wraps Per Inch (WPI) Tool Kit
Wraps Per Inch (WPI) Tool Kit

Wraps Per Inch (WPI) Tool Kit


  • Measures the thickness or "weight" of the yarn. 
  • Identifies yarn with poor or no labeling. 
  • Makes exchanging yarn for projects easier. 
  • Knit-Kard identifies yarn weight via WPI number. 
  • Includes traditional & Yarn Council weight terms. 
  • Suggests both needle and hook sizes for yarn. 
  • Suggests gauge results based on needle size. 

Made by Nancy's Knit Knacks LLC 

Birch hardwood WPI tool (laser etched), plastic Knit-Kard.