The Johnson Level & Tool 72″ Box Level is a must-have for any serious DIYer. It will help you take accurate measurements and make sure your work is level. The orange box level has a removable end cap that allows you to switch between different types of levels quickly and easily. This box level features Johnson’s Glo-View technology, which makes it easy to read the vials in low light conditions. This aluminum frame has a length of 72 in., while the total number of vials is 3. There are 2 plumb vials on this tool, as well as one straight wireway with a length of 72 in.. The Johnson Level & Tool Box Level is an essential tool for anyone looking to take their work up a notch.