Cocoknits Stitch Stoppers are cylinders made of durable, EVA foam in a variety of sizes with an opening in the middle that accommodate everything from size 0 (or the cord of an interchangeable needle set) to a US 15. Perfect!!
Looking for the perfect needle gauge for traveling? Cocoknits fashioned one based on those a jeweler would use to size diamonds. The result is a joyous rainbow stack of connected discs for identifying knitting needle sizes US 0-15 / 2-10 mm.