rocketbook fusion smart reusable notebook bundle with 4 pilot frixion pens and 1 microfiber cloth included (dark blue, executive) rocketbook the rocketbook fusion is designed for every classroom, office, and personal mission. the fusion is a reusable pen and paper notebook with seven different page templates that connect to your favorite cloud services. 42 futuristic pages are packed with calendars, to-do lists, and notetaking layouts. and of course the fusion is made with patented reusable core technology. the synthetic paper allows you to write smoothly with a pilot frixion pen, then magically wipe clean with a damp cloth to reuse again and again! use the rocketbook app to blast your notes, plans, lists, and big ideas to the cloud for proper organization. then, erase and reuse your fusion for your next adventure!