The wooden I-shaped disc used to fly a kite is called a wooden crutch, and the one with wheels is called a kite reel. That is, bobbins, kite strings.

Something with wheels around which a kite string is wound is called a kite string wheel. Kites are made of paper or silk pasted on bamboo and other skeletons and pulled by long lines tied to them. They can be put into the sky under the action of wind and are very popular among people.