The three-axis motion of this versatile measuring device gives you the flexibility to map out any area, regardless if it’s on the ground, against a wall or incline, or even on the ceiling. Its lightweight construction and adjustable tripod legs let you maneuver it close into an area. The base has a built-in bulls eye level for ensuring the device is plumb. Sliding telescoping tracks let you adjust the three straight rules to the required length or conditions. The maximum height of the vertical rule is 102", and the longest of the two side rules is 40". All straight rules are graduated in 1/4" increments. Integrated into the device is a caliper with 11.75" deep reversible jaws for inside/outside measurements and left/right hand configuration, and a 360° protractor with 1° graduations. All components are made of a non-corrosive metal and disassemble for easy storage. It comes with two sets of paired clips and two telescoping extensions for positioning small objects, a torpedo level for mounting on the slide rule tracks and a soft carrying case.