When evaluating traditional kites, focus on the frame material, which should ideally be high-quality split bamboo that has been aged and treated to prevent warping. The covering material is equally critical; for premium collectors' items, genuine silk or hand-painted Xuan paper is preferred, while high-density polyester or ripstop nylon is better for functional, durable flying. Ensure the balance point is precisely calibrated and that the hand-painted patterns use weather-resistant pigments to prevent fading during outdoor use.