Chinese knots (中国结) are a kind of Chinese traditional art. They have a long history in China. Chinese began to make Chinese knots in the Tang and Song dynasties (朝代) and later they became popular in the Ming and Qing dynasties.
Every knot is made of only one rope(绳) and colorful ropes are used to tie the knots. However, Chinese use red ropes to make Chinese knots most because it stands for (代表) good luck. The knots can be used as car decorations (装饰). Also, people put the knots in their houses.
You can see Chinese knots in different places of China and they are popular among the young and the old.