Addi Turbo Lace, 40" circular needle: US 4 (3.5mm)
These circular needles were designed with lace and sock knitting in mind. The sharp tips are perfect for intricate stitches, and the tips are a hollow, coated brass tip which allows you to control your stitches better. Join doesn't snag. Metric size is stamped on the flexible cord.
Picture shown represents this style of needle, but not necessarily this size