Brilliant Knitting (BR) brand bamboo Circular Knitting needles. Size US 17 (12.0 mm). 32 inches (80cm) in length from tip to tip. Only the finest top quality material (over six-year old winter bamboo grown in high mountains) is selected to make our needles. These needles are lightly carbonized, which makes them stronger and mildewproof and gives them a lifelong quality assurance. Bleached needles look much lighter than carbonized ones. Although they appear nice when you get them, they don"t last long before changing colors, cracking and picking your yarns. Carbonized knitting needles are much more expensive than bleached or waxed ones.