Create, Digitize, Erase, Re-Create: Capture ideas with the included Pilot Frixion Pen, digitize effortlessly using the Rocketbook app, store in your preferred cloud service. When done, simply wipe the pages clean with a damp cloth and start fresh. App-Enabled for Digital Organization: The Rocketbook app allows you to scan and upload your visual work directly to cloud platforms like Google Drive, Dropbox, OneNote, etc. The app-connection ensures your creativity is accessible from anywhere. High-Quality & Durable Materials: Crafted from reusable, premium dotted paper, the Rocketbook Core features a spiral binding and waterproof cover. The grid layout offers flexibility for everything from bullet journaling to geometric sketches. Portable and Versatile Sizes: Available in two sizes—Letter (8.5 x 11 inches) and Executive (6 x 8.8 inches)—the Rocketbook Core is compact enough to fit into backpacks, purses, or briefcases. This notebook offers portability and versatility. Eco-Friendly Reusability: Designed with sustainability in mind, Rocketbook notebooks help reduce paper waste with a reusable alternative. Enjoy a paper-like notebook that can be used repeatedly, allowing you to save work and erase everything else.