Needle Gauge and Ruler
This is a super useful tool for any knitter. Find the hole in the gauge that fits your knitting needle and identify your needle size in both metric and US sizes. Also handy is the ruler along the side of the tool that allows you to measure up to 5 inches or 10cm (just the right size for measuring a gauge swatch). The full length of the tool is 15.5cm/6 inches and will fit nicely in most notion bags. The gauge is made from white plastic with red markings.