Amazon.com: Wooden Knitting Circular Needle for Bulky Yarn Making Rugs Blanket and Crafts (US19(15mm)-31" US36(20mm)-31" US50(25mm)-48")
Amazon.com: ChiaoGoo Circular 40 inch (102cm) Wooden Knitting Needle Size US 19 (15mm) 2040-19
Wooden Circular Knitting Needles 3Pcs Oversized Extra Large Knitting Needles 3 Sizes Extra Large Knitting Needles With 15mm 20mm - AliExpress
Amazon.com: 16-inch (40cm) Jumbo Straight Wooden Knitting Needles with Bonus ebook, 1 Pair, Real Oak Wood Big Needles for Chunky Yarn, US Size 19 ( 15mm)