Carbon fiber is one of the most versatile materials used in the manufacture of new generation aircrafts and automobiles. These revolutionary new-age needles are made from high-tech carbon fiber with tips in nickel plated brass - the perfect combination for a light body and sharp tips. Karbonz needles have high tensile strength, and are light weight and flexible. Their shiny, smooth brass tips come perfectly pointed and flawlessly tapered. Their carbon fiber surface helps helps stitches move smoothly and makes them warm to touch, gentle in the hand, and ideal for all types of yarns and projects! Each pack contains one Karbonz Fixed Circular Needle (two needle tips joined by a cord). Available in lengths of 16", 24", 32" or 40", sizes range from 2.00 mm (US 0) to 3.5 mm (US 4), available as shown below.