The ChiaoGoo TWIST Short Combo packs contain one 2" (5 cm) and one 3" (8 cm) set of the same size tip as well as two MINI red cables allowing knitters to make 9" (23cm) - 12" (31cm) circulars. The tips are solid, surgical stainless steel and have a tightening hole.
These are a DREAM for socks and sleeves!