1)   Screen Calipers 4.0
The Screen Calipers are the unique on-screen measurement tool, that let you measure anything on your computer screen with ultimate accuracy. The Screen Calipers floats above any other application so you can measure anything on your screen.

 2)   Screen Calipers Mac Edition 3.2
The Screen Calipers are the unique on-screen measurement tool, that let you measure anything on your computer screen with ultimate accuracy. The Screen Calipers floats above any other application so you can measure anything on your screen.

 3)   Screen Tracing Paper 1.0
Screen Tracing Paper overlays a transparent digital sheet over your PC desktop so that you may trace diagrams and designs, giving you measurement capability in any situation. Position, area and circumference can be calculated, with accuracy.

 4)   Abilities Builder Measure It 1.1
Build linear measurement skills, with English and metric rulers. This multimedia program uses the Microsoft Agent Peedy, a parrot character. Printed worksheets and tests can also be generated.