From the manufacturers of addi Turbo comes the Profi bamboo line. An earlier version of the addi Natura line, the cords aren't quite as flexible as
HiyaHiya - Bamboo 32-inch Circular Knitting Needle - Espace Tricot
Interchangeable Knitting Needles No. 13 (9.00mm) – Clover Needlecraft, Inc.
Skacel Bamboo Knitting Needles - 10 x US Size 13 (9.0mm)
32 Circular Knitting Needles, US 13 (9mm) — Prym Consumer USA Inc.
4mm Circular Bamboo Knitting Needles – weareknitters
Diverse Range of Sizes: This knitting kit includes 13 pairs of 4 inch (10cm) aluminum circular knitting needles with sizes ranging from 3.0mm to 10mm
Yarniss 13 Pair Circular Knitting Needle Set 3.0~10.0mm, Interchangeable Aluminum Knitting Needles with Case
Yarniss 13 Pair Circular Knitting Needle Set 3.0~10.0mm, Interchangeable Aluminum Knitting Needles with Case
addi Turbo Click Tips at WEBS
Skacel Bamboo Knitting Needles - 10 x US Size 13 (9.0mm)