Knitter's Pride-Karbonz Interchangeable Needles. Made from high-tech carbon fiber with tips in nickel plated brass. The light bodied carbon fiber and sharp brass tips provide an unparalleled knitting experience. Ideal for all types of yarns and for every project. Customizable cord length. Interchangeable needles are excellent for socks, and projects with high stitch counts. The 4" interchangeable tips may be used with the cord length of 20 centimeters (16"). This package contains one pair of interchangeable needles (cord sold separately). Imported.