Thank you for viewing. I used this for maintenance and repair of my chromoly frame. I was able to confirm and correct any errors with no discrepancies. If the left and right dropouts of the front fork are not parallel, it can affect wheel installation and riding performance, so I use this tool for adjustment. Production has now ended. I am listing this because I will not be using it again. Please check the images and description, and no claims, returns, or cancellations are accepted. I will ship using recycled packaging materials.