Cubic Ruler is a very simple to use screen ruler. You can measure de distance (in pixels) between to points or the length of a graphic item (window, draw, paper, etc)

FEATURES:
- you can switch between vertical and horizontal placement
- semi transparency
- it stays on top of any other windows
- hyper long cursor for better precision
- can be extended/reduced as you need it
- it is really small
- it is freeware
- single file
- it doesn't need to be installed/uninstalled (just download it and double click)
- it doesn't mess your registry or system with unneeded DLLs or other craps like this
- it has integrated Help as tooltips