Abstract: A kite has a cover sheet and a cross-shaped frame. The cover sheet has an oblong hole and four triangular corner bags. The cross-shaped frame has a spine, a two-way joint disposed on the spine, and two crosspieces connected to the two-way joint. Two rotating wheels are disposed on the spine. A plurality of rotating vanes engage with the rotating wheels. The spine is inserted in two of the triangular corner bags. Each of the crosspieces is inserted in the corresponding triangular corner bag. Two tail bands are connected to the cover sheet.