Nuka, eternal stationery presents a way that fans of handwriting can keep their passion for pen and paper alive while helping to conserve trees. This attractive, rewritable notebook comes complete with its own metal pencil that writes on 96 special, waterproof pages, using a chemical reaction. Or, use any regular pencil, pen or highlighter to write on the Nuka paper. The pages can be used and re-used over and over because everything can be wiped off with the Nuka magic eraser. And an app that comes with the “eternal stationery” allows users to sync the Eternal Notebook with mobile devices.