Sizes 0 (2 mm) through 2.5 (3 mm) have the same memory-free cable as ChiaoGoo RED circulars and TWIST cables.
Sizes 3 (3.25 mm) and larger are crimped nylon cables to guarantee no separation AND they swivel.
For sizes 12.75 mm (US17) and larger, needles are made of lightweight wood joined by a cord that is a clear, plastic, hollow tube which allows for larger stitches to transition smoothly from needles to cable and vice-versa. Each tip is crimped for a secure connection. Needle size is permanently laser imprinted on each set. Bamboo circulars are available in the patina color only.