ChiaoGoo 5 in. (13 cm) TWIST LARGE Interchangeable Sets include 6 surgical stainless steel lace needle tipshree cable lengths to make 24 in. (60 cm), 32 in. (80 cm) and 40 in. (100 cm) circulars. TWIST red cables are memory free! They consist of a multi-strand, steel cable coated with red nylon. Also included with each set are easy-to-read, coded cable connectors, end stoppers, T-shaped tightening keys, stitch markers, a needle gauge and compact, zipper-enclosed, fabric case. TWIST & SPIN tips, cables and accessories are all switchable! Needle tip sizes range from 5.5 mm (US9) – 10.00 mm (US15).