HiyaHiya, 9" Steel SHARP Circular Needle: US 6 (4.0mm)
With flexible cables and smooth joins, this lightweight stainless steel circular needle allows stitches to slip easily off, and is a great addition to any knitter's toolbox. This SHARP line is quite suitable for intricate needlework with lots of increases, decreases and yarn overs. Also good for fine, densely plied yarn like sock yarn.
This 9" length is popular for knitting socks, cuffs of sleeves and other items with a small circumference.
Picture shown represents this style of needle, but not necessarily this size