The Rocketbook Fusion Smart is not a notebook like any other. The pages made of a polyester compound feel like paper, and if you write and draw on them with the right pens, they also look like paper with their dot grid. Unlike paper, however, you can erase these note pages completely at any time and use them again and again. For this technology to work, you need pens from the FriXion series from Pilot and a damp cloth to wipe out the writing afterwards. As soon as the special ink is dry, it cannot be rubbed off or smudged with dry fingertips. There is also a free smartphone app to go with the notebook so that you can still keep the notes you have made.