If you can boil water, you can professionally crest and fletch an arrow in less than 10 seconds. The QuikFletch Twister shrinks to fit any size carbon or aluminum arrow shaft. Features NAP's patented micro-grooved vanes for enhanced stiffness, spin and accuracy at an economical price. The microgrooves have been proven to spin the shaft twice as fast as with a standard vane. QuikFletch is the easiest way to fletch your arrows either in the field or at home and they are guaranteed not to slip!!! 30 grain weight each.