Dual-purpose pen

Ink cartridge selection control mechanism of a multi-ink cartrid

Instrument for writing and drawing

Integrated lipstick and lip pencil

Knock-out type mechanical pencil with retractable eraser

Mechanical pencil

Mechanical pencil

Multi-color mechanical writing instrument

Multi-color writing utensil

Multi-element writing instrument

Multicolor pen

Multicolor writing instrument

Multiple-point writing instrument including a mechanical pencil

Multiple-shaft pen kit

Multiplex writing implement

Multiplex writing implement

Multiplex writing implement

Multiplex writing implement

Multiplex writing implement with eraser

Multiplex writing instrument