This set of SmartStix Interchangeable Circular Needles is laser marked at one inch intervals, so you can measure your creations and gauge and track your progress on the go. Each needle has a unique, lustrous metallic shade with its specific size laser printed on it and features a high quality & lightweight aluminum that is easy on the hands. These needles have perfect points and are flawlessly tapered, which is ideal for all yarn and project needs.