Sets include 5″ (13 cm), surgical-grade, stainless steel, lace tips and three cable lengths to make 24″ (60 cm), 32″ (80 cm) and 40″ (100 cm) circulars.US sizes 2-15 (2.75-10mm). 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!