Amazon.com: 16 inch US Size 6 /4mm Stainless Steel Circular Knitting Needles Set for Beginners, Round Metal Knitting Needles with Fixed Lace, Circle Needle for Small Knit Projects Socks, Hats, Christmas Stockings
All About Needle Sizes
Knitter's Pride Dreamz 40" Fixed Circular Needles US 6 | 4mm Fuschia Fan | SKU: 200298 | Stash Fabrics
Amazon.com: Knitter's Pride Zing Knitting Needles DPN Double Pointed 6 inch (15cm) (Set of 5) Size US 6 (4mm) Bundle with 10 Artsiga Crafts Stitch Markers 140009
US 6 (4mm) Knitting Needles | Quality Needles at Laughing Hens
29" Circular Prym Pearl Grey US#6 4mm Knitting Needle