CLOVER-Knitting Needle Gauge. Perfect for everyone who holds on to their knitting needles forever! This gauge will help you to determine the gauge of your needle long after the manufacturers printing has warn off. This package contains one 3-1/8x3-1/2in thin flexible plastic gauge in the shape of a knit cap that will measure knitting needles from 0/2.0mm to 19/15mm. Imported.