Lykke Driftwood 8 Inch Double Pointed Knitting Needles - US 6 (4mm)
ChiaoGoo Red Lace Circular 32 inch (81cm) Stainless Steel Knitting Needle Size US 6 (4mm) 7032-6
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
Lykke Driftwood Single Point Knitting Needles US#6 (4mm) 10"
Knitting Needle Sizes and Conversion Chart (Free Printable) - Sheep and Stitch