Knitpro Smart Stix Fixed Circular Needles sizes 2mm - 12mm Smart Stix fixed circular needles are laser marked at 2cm intervals, so you can measure your creations on the go. Each needle is made from high quality & lightweight aluminium that is easy on the hands. Perfect points, flawlessly tapered, ideal for all yarns and projects. Laser printed sizes on all needles. A smooth join ensures easy stitch glide and no snagging. Resilient, flexible cables lay flat with no kink or twist, easy to store. 80cm cord.