Spool knitting, corking, French knitting or tomboy knitting is a form of knitting that uses a spool with a number of nails around the rim to produce a narrow tube of fabric, similar to i-cord. Spool knitting is a traditional way to teach children the basic principles of knitting.
Spool knitters typically have four or five pegs (or brass nails), although the number can range from sixteen to more than one hundred.
Many things can be made from the resulting tube. For example, it can be wound in a spiral to produce a mat or rug or, if a larger spool with more nails is used, a sock or a hat could be made. Historically, spool knitting has been used to make horse reins.