A brand new innovation from Knitter's Pride, SmartStix feature 1" color coded sections on each needle. This means you can ditch the tape measure, and do a quick gauge or length check just using your needle! Each needle is made from high quality, light-weight aluminum with perfectly tapered points, making them ideal for whatever project is next on your list, from hats, to cardigans, to intricate lace designs and more. Each needle is laser printed on all sides, making each marking consistent and allowing you to check measurements from any angle. SmartStix Interchangeable Tips also feature a unique lustrous shade, specific to each size.