Create, Digitise, Erase, Re-Create: Capture ideas with the included erasable gel pen, digitise effortlessly using the Rocketbook app, store in your favourite cloud service. When done, simply wipe the pages clean with a damp cloth and start fresh. App-Enabled for Digital Organisation: Use the Rocketbook app to scan and upload your visual work directly to cloud platforms like Google Drive, Dropbox, and OneNote. The app connection makes your creativity accessible from anywhere. High-Quality Durable Materials: Crafted with reusable, premium dotted pages, the Rocketbook Core features spiral binding and a waterproof cover. The grid layout offers flexibility for everything from bullet journalling to geometric sketches. Portable and Versatile Sizes: The Rocketbook Core comes in two sizes—Letter (21 cm x 29.7 cm) and Executive (15 cm x 22.4 cm)—and is compact enough to fit in backpacks, purses, and briefcases. This notebook offers portability and versatility. Versatile Dot Grid Pages: The Rocketbook Core Dotted notebook features dot grid pages that can be used again and again. Simply brainstorm ideas, create diagrams, draw up engineering designs, and sketch artistic visuals, then erase and start fresh.