QUADS Stainless Steel Tips 5" - ChiaoGoo

More comfortable to hold than a round needle due to the flat sides and rounded corners.

They are carefully calibrated to achieve the same gauge as round needles, so there’s no need to “size up” as with other brands. QUADS™ tips are compatible with all CG small [S] and large [L] interchangeable cables and are recommended for use with our NEW swivel adapters for an even more comfortable knitting experience.

Sizes US 3 (3.25mm) – US 8 (5mm) have a SMALL [S] size join and work with any SMALL [S] diameter cables. 
Sizes US 9 (5.5mm) – US 11 (8mm) have a LARGE [L] size join and work with any LARGE [L] diameter cables.