A writing device can be configured to provide ink or a colored dye upon a piece of paper or other medium. Such a writing device can include a plurality of separately extendable writing elements and a housing with a plurality of holes upon a terminal end of the housing, each hole providing a dedicated outlet hole for one of the writing elements, the housing comprising one of an elliptical cross section, a circular cross section, and a rounded off square cross section.

The present invention relates to a multifunction pen. It integrates the function of a pen, a mechanical pencil, and a highlighter into a single pen body. A user can use it as a pen, a mechanical pencil, or a highlighter as he or she wishes by simply sliding function buttons near one end of the pen body. The unique seal structure of the present invention prevents the highlighter from drying out when the multifunction pen is not in use, which prolongs the lifespan of the highlighter.

A writing device can be configured to provide ink or a colored dye upon a piece of paper or other medium. Such a writing device can include a plurality of selectable writing elements, wherein one of the writing elements comprises marker device comprising an ink reservoir connected to a writing tip.

A writing device can be configured to provide ink or a colored dye upon a piece of paper or other medium. Such a writing device can include a plurality of selectable writing elements, wherein one of the writing elements comprises marker device comprising an ink reservoir connected to a writing tip.

A writing instrument includes a first reservoir for dispensing a first fluid having a first property of reflectivity. A first tip member is in fluid connection with the first reservoir. The first tip member has an end with a size and shape that corresponds to a response area of the response form. A second reservoir can be used for dispensing a second fluid, which is capable of modifying the first property of reflectivity when covering the first fluid. A second tip member is in fluid connection with the second reservoir. The second tip member has an end with a size and shape that corresponds to the response area of the response form.