$95 shipped. Includes Fastrax Adjustable Camber/Caster Gauge plus Toe Measurement Kit. Retails Camber/Caster gauge plus Toe Kit retails for $200. Fits wheel sizes 13" to 18".
I bought this easy-to-use tool about a year and half ago to do my own alignments at home and stop paying an alignment shop every time I wanted to bump up the negative camber in the front for a track or auto-x session. I sold my WRX and just use it now to make sure our family cars are in alignment.
Attached is a link to an article from Modified magazine about how easy it is use and a link to a YouTube video on how to use it.
SPC Performance Fastrax Camber/Caster Gauge - Sport Compact Car Magazine
YouTube - Fastrax Camber/Caster Gauge