Now, you can simply and effectively fletch your Blazer vanes in a matter of seconds. Slip the Shrink Fletch onto the shaft and hold it in place. Then, submerge the shaft into boiling water, nock end first, and 10 seconds later you have a perfectly fletched arrow. Shrink Fletch can be installed on any arrow shaft 17/56 to 24/64 in diameter. For complete adhesion, the entire Shrink Fletch must be submerged in water heated to 160-175°. Each Blazer Vane is 1.987" long with a profile height of .568" and weighs only 6 grains. Per 6. Colors: Neon Yellow, Neon Orange, Neon Green.