RPM set-up gauges
 

Recently bought a couple of items off a guy that was getting out the hobby, he threw in quite a bit of freebies, two items were some plastic gauges by Rpm, one i know is a camber gauge, the other i have no idea, its plastic, long and slids in to make it shorter and out to make it longer, anyone have an idea what this thing is and how u use it?

Track width. Tells how wide the front and rear of the car is.

Yep, thats it, doesnt have those those blue stand things on the bottom though, so its for toe-in measurement, u guys know how to use it, cant seem to figure out how u use it?

It's a toe end guage, you measure from the is side of the tire to the other tire