ChiaoGoo Double-Sided US-Metric Swatch/Needle Gauge. Made in the USA!
See front and back side product photos for features.
Front Side - Knitting Needle Conversion Chart. Types of yarn and recommended needle size.
Back Side - Crochet Hook Conversion Chart. Types of yarn and recommended hook size.
Plastic gauge measures 5-1/2 inches by 5-1/2 inches.