Fixed Circular Needles: Made from fine quality aluminum, KnitPro Smartstix Fixed Circular needles are lightweight and built to last through longer knitting sessions. The perfectly crafted metal tips and kink-free cable move effortlessly through the yarn creating beautiful knitted pieces. Available Needle Sizes: KnitPro Smartstix Fixed Circular needles are color coded and available in 16 popular sizes, ranging from 2mm to 8mm, perfect for knitting cowls, headbands, scarves, etc. 2-in-1 Knitting Tool: Smartstix is a perfect tool for smart knitters, who prefer precise knitting with accurate measurements. Each Smartstix needle and cable is marked with a 2cm gap that lets you measure the gauge as you knit. This unique built in measurement design enables faster and efficient knitting. Laser-Printed Sizes: Each pair of vibrant Smartstix knitting needles and cables have laser-printed markings that make them a preferred choice among knitters. These precise markings do not rub off due to friction of the yarn or the hands of the knitter. Sustainable Paper Packaging: Packaged in FSC-certified recycled paper, these needles prioritize sustainability with responsibly sourced, plastic-free materials to help protect the environment.