The Rocketbook Core Smart Reusable Notebook provides a classic pen and paper experience, yet is built for the digital age. Although it feels like a traditional notebook, the Core is endlessly reusable and connected to all of your favorite cloud services. When you write using any pen from the Pilot FriXion line, your writing sticks to Rocketbook pages like regular paper. But add a drop of water and the notebook erases like magic. We designed the Core for those who want an endlessly reusable notebook to last for years, if not a lifetime. The Core has pages made with synthetic materials that provide an extremely smooth writing experience. Blast your handwritten notes to popular cloud services like Google Drive, Dropbox, Evernote, box, OneNote, Slack, iCloud, iMessage, email and more using the free Rocketbook application for iOS and Android. The app's OCR functions can also automatically name your files and transcribe your notes to text!