Boye Circular Knitting Needles, 6, Size 7, 4 mm, 29'' : Amazon.co.uk: Home & Kitchen
Knitting Needles Size 6mm x 30cm Length - Craft & Hobbies from Crafty Arts UK
Knitsilk
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 :