The Wolf Tooth Pack Hanger Alignment Tool allows quick adjustments to be made to your derailleur hanger while on the trail or in the workshop.
Alignment fixes are quick and intuitive, as you only need to adjust the hanger handle until it is parallel with the indicator rod. By using the bike's axle for reference, you don't need to be concerned with the wheel for making adjustments to the hanger. For simple and durable storage, the components of this tool also nest inside of the handle.