Manufactured in the USA, ChiaoGoo's 3" x 3" Swatch/Needle Gauge is made of durable white plastic. This multi-purpose tool will help determine gauge and measure your needle/hook sizes. There are handy conversion charts and yarn standards tables for reference. It is also double-sided for US/Metric and knitting/crochet differentiation.

To use, simply place the tool on your swatch and count how many stitches/rows fit inside the cutouts.