Cherry Valley Tools tram gauge for auto body repair and frame straightening. Kit includes 3 individually adjustable pointers(24",18",and 12"), 2 quick connect pointer ends (one socket type, one V-type), and 1 six foot main beam. Gauge has many uses, quickly measure frame rails for square, use two anchor points and measure height with third pointer, gauge mounting locations from undamaged vehicle and much more. Using the quick connect pointer ends easily switch from pointer to socket type to set on top of bolt head and easily feel center. The V-type pointer end works great to find center of threaded potion of bolt or standing seam. Each pointer also has 1/8" groove cut on end to easily hook into a hole for overhead measuring and squaring. This product is proudly made in the USA and CNC'd from billet aluminum.