When choosing yarn balls, we should pay attention to the following points: first, choose yarn balls with good quality, bright colors, and clear textures to ensure the quality and aesthetics of handicrafts; Secondly, it is necessary to choose yarn balls of different materials and colors according to one's own needs and preferences to meet different production needs; Finally, it is important to pay attention to the storage and maintenance of the yarn balls to avoid damage caused by direct sunlight and humid environments.