Amazon.com: Knitter's Pride Mindful 4-Inch (10mm) Interchangeable Circular Lace Knitting Needle Tips Size US 3 (3.25mm) Stainless Steel, Smooth Finish Bundled with 10 Artsiga Crafts Stitch Markers 250142
Knitting Needle Sizes and Conversion Chart (Free Printable) - Sheep and Stitch
Amazon.com: woshilaoDS Double Pointed Knitting Needle Sets, 20 cm/7.8 inch Stainless Steel Metal Knitting Needles with Double Ended for Beginner, Kids, Sock Knitting Gauge 2 mm/2.5 mm/3 mm/3.5 mm/4 mm/4.5 mm/5 mm
Prym Ergonomics Single Pointed Needles 14"-Size 4/3.5mm - Walmart.com
Amazon.com: KnitPal 47-inch (120cm) Magic Loop Sock Circular Knitting Needles, (Free Patterns), Set of 6 Small Sizes: 0,1,1.5,2,3, and 4 (2,2.25,2.5,2.75,3.25 and 3.5mm)