Clover Swatch Ruler, Needle & Hook SizerClover's must have tool for knitting and crochet! With this handy tool you can measure your gauge, check you need size, and even find your hook size easily using the simple insert. Measure your hook and needle size in US, metric and Japanese standard sizes. Simply place the shaft of your crochet hook in the groove that fits best to check your hook size. Place the point of your knitting needle in the hole that fits best to check your needle size. Get