Knitter's Pride Karbonz Interchangeable Normal Tips are a revolutionary product. Each needle tip is 13cm in length. Designed to produce a specified length (tips + cord). To be used specifically with appropriate cord length. Karbonz tips are New-age needles made from High-Tech carbon fiber with tips in nickel-plated brass! Combination of two versatile materials - light bodied carbon fiber & sharp brass tips. Shiny, smooth brass tips come in perfect points, flawlessly tapered - ideal for all types of yarns and for every project. The needles have high tensile strength and are lightweight with lots of flexibility.