ChiaoGoo 7500-C 2.75-10.0mm Twist Red Lace Interchangeable Set All of Chiaogoo Twist sets include 5 in (13 cm), surgical stainless steel, lace tips and three cable lenghts 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-stranded, 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 a compact zipper-enclosed, fabric case. Twist and Spin tips, cables, and accessories are all switchable. Needle size included: 2 to15 (US size), 2.75 to10.00 (mm size)