$4.50
The Knit Check Gauge from Susan Bates is a combination ruler, needle sizer, and stitch gauge measuring tool. This is an invaluable tool for any knitter - who of us hasn't gone digging through a pile of needles, trying to remember if the '6' on the needle refers to metric sizing, or US sizing?
The needle gauge on this tool has sizes from 2mm through to 25mm. The ruler is 5" on one side, and 14cm on the other.