ChiaoGoo Red Stainless Steel Circulars use a flexible, multi-strand, steel cable coated with red nylon that allows your yarn to slide right over and has NO memory. Made of surgical-grade stainless steel they have a smooth, satin-sheen finish that won’t reflect any light making it hard to see your work. The spectacular tips and joins are precisely machined and are lightweight and strong.Needle size is permanently laser imprinted on each circular.