Wpi Tool
This essential weaver's tool from Nancy's Knit Knacks will help you determine the sett of your weaving project by measuring the number of wraps per inch (WPI) of your selected yarn. Includes a handy chart to convert a yarn's WPI to gauge for knitting and crochet projects as well. Birchwood tool has an oil finish with laseretched measurements. Made in the U.S.