The Fletch III by AAE is an arrow fletching tool designed for archers and bowhunters that 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 dia. to 25 aluminum dia.). Each component is specifically designed from materials that enhance that component's function. For example, the clamp is made of a highly rigid material that glue will not stick to because it contains Teflon and silicon.The X-Stand/Arrow holder is designed for different sizes of arrow shafts. It is labeled with an "L" (large diameter) and an "S" (small diameter) to indicate which side of the stand to use.