A niddy noddy is a tool used to wind yarn into a skein while simulatneously measuring the length of the skein. Niddy noddies are available in many different sizes - from 12 inches to 4 feet. The most common size of niddy noddy makes a two yard skein. To calculate the yardage of a skein, multiply the number of yarn wraps in the skein by the length of one wrap.
Though niddy noddies are most often used by handspinners, they are indespensible gadgets for anyone who uses yarn.
How to use your niddy noddy: