The Vane Master PRO is an innovative tool made to give you perfection in fletching arrow to arrow and designed to accommodate every arrow size with little to no adjustment. Fletch your arrows at a 0-5 helical, left or right, with the ability to hold vanes up to 4 in length. This jig can fletch 3 or 4 fletch configurations (4 fletch knobs sold separately) using Vane Flat Technology. This technology uses two wires holding the vane, allowing the clamp to contour perfectly around the shaft for perfect vane adhesion. The VMP is the ideal tool for your home or shop. Equipped with vane flat technology that uses rotating wires to allow for perfect vane adhesion across your arrow shaft