PRO "Takumi" Circular Knitting Needle 32in. No.11 (8.0mm) – Clover Needlecraft, Inc.
All About Needle Sizes
Amazon.com: Circular Knitting Needles Beginners Stainless Steel Knitting Needles Set, 11 Pieces Circle Knitting Needle 17-inch Long & Smooth Metal Round Needles, Ideal Gift for Knitters and Mothers
Amazon.com: addi Knitting Needle Turbo Circular Skacel Blue Cord 16 inch (40cm) Size US 11 (8.0mm)