These are metal fixed circular knitting needles from addi. Size: 2.5mm (equivalent to US size 1) Length: 100cm This size is perfect for knitting socks with sock yarn. These were purchased in 2012, and are from before the nickel-free specification. Please note that the plating material is different from the current products. They have been used for knitting for many years, so there are fine scratches and signs of use overall. In particular, there are kinks in the cord and slight warping of the needles. Please understand this before purchasing. *Instant purchase OK