Remember the pencil with an attached eraser; it gives us this nice feeling that the eraser is always there. The design goal is to preserve the same feeling with the modern day whiteboard marker.
Combo Marker is a whiteboard marker with an eraser designed in the cap itself. It eliminates the need to have or carry a separate whiteboard eraser. Combo Marker’s cap provides a comfortable hold and an acceptable eraser size for efficiently erasing the white board.