It's easy-to-use, accurate, portable, and affordable. Build identical arrows every time! The Fletch III by AAE is an arrow fletching tool designed for archers and bowhunters who want simplicity and accuracy at a reasonable cost. Fletch III features a fixed 1-degree offset and fits arrows .240" to .370" in diameter (ACC diameter to 25 aluminum diameter). Each component is specifically designed from materials that enhance that component's function. For example, glue won't stick to the clamp because it is made of a highly rigid material containing Teflon and silicone. The X-Stand/Arrow Holder is designed for different sizes of arrow shafts. It is labeled "L" for large diamenter arrows and "S" for small diamenter arrows, indicating which side of the stand to use.