A sleek black pen with a rolled-up strip of grid paper emerging from a side slit, lying on a wooden desk, photorealistic.

A pen with a slit where a roll of paper comes out. The pen is sleek, black plastic, with a small, thin slit on the side. From the slit, a rolled-up strip of paper is emerging, which can be unrolled as notes. The pen looks functional yet innovative, combining the elegance of a writing instrument with the practicality of a portable note-taking tool See more