Rocketbook Matrix Graph Notebook - Eco-Friendly Reusable Notebook with 1 Pilot Frixion Pen & 1 Microfiber Cloth Included - Black, Letter Size (8.5" x11") (MTX-L-K-A) Book-size Notebook Squared 32 Pages  (Infinity Black, Pack of 3)

The Rocketbook Matrix is an all-in-one science, math, and design solution! Developed for laboratory and academic settings, the Matrix graph notebook makes it easy to create and share hand-drawn graphs, sketches, and diagrams. The .25” grid format provides a strong visual aid for your work without being a distraction. More than just a lab notebook, the Matrix works with the Rocketbook app to scan and digitally share your notes with anyone, anywhere, or to simply transfer your work to a computer. Plus, the innovative reusable synthetic paper allows you to write smoothly with a Pilot FriXion pen, then magically wipe your pages clean with a damp cloth to reuse again and again.