Developed by MisterStiltSkin of Australia, this very handy Yarn Gauge and Wraps Per Inch (WPI) tool is essential for working out the thickness, and average weight of a range of yarns.
Indispensible aid for all hand spun yarns, and yarns with no label information. The Reference Chart on the flip side is a guide of recommended needle and crochet hook sizes as well as conversions between metric and US Imperial sizes for each weight established.
Laminated and in a distinctive orange colour, this will be a go-to guide in your craft tool kit.