The Rocketbook Everlast is not just any notebook. While the pages made from a polyester blend feel like paper and, when written on with the right pens, look like it due to their dot grid, they can be completely erased at any time and reused. To make this technology work, you need Pilot's FriXion series pens and a damp cloth to wipe away the writing. Once the special ink is dry, it cannot be smudged or erased with dry fingertips. To ensure you can still keep your notes, there is also a free smartphone app that pairs with the Rocketbook Everlast.