Discontinued Mizuno SST 80-24BM 8-piece set, 97cm, Kyudo (Japanese Archery) The arrowheads of 4 arrows have been replaced with new ones. The fletching is goose nock. There are 4 arrows with close-range arrowheads and 4 arrows with long-range arrowheads. They are distinguished by the color of the binding thread, but all 8 arrows have the same shaft and fletching specifications. Since only the arrowheads are different, either set of 4 arrows can be used for both long-range and close-range shooting. If you are concerned, you can standardize the arrowheads. Some straw from the tatami mats is attached to the arrow tips from long-range shooting. There is a sense of use, but they are still perfectly usable.