You've definitely used dry-erase markers to mark up a whiteboard in a classroom or at the office—they’re so ubiquitous, they’re even replicated in apps that allow you to keep a whiteboard in ...

and the white frosted glass background creates high contrast with bright dry-erase and liquid glass markers Ideal for heavy writing use in an office, at home or any commercial environment.

There are some inventions that look completely pointless to the untrained eye: who would ever need a motorized garbage can, an electric pencil sharpener or a battery-powered eraser? Quite often ...

gInk Epic Pen Paint on Whiteboard Desktop LiveDraw ZoomIt ... You will see different color pens, an eraser tool to delete an annotation, an eye icon to show/hide annotations, a Pan tool to ...