Cheap Pens you can erase
Elfinbook 1.0 Smart Reusable Notebook Environmental stone paper, Cloud storage notebook, Organize files by App, Comes with a Pilot pen
USD $15.99
$19.00
Elfin Book Notebook is a smart notebook which can be used repeatedly. Compatible with App, it can help you store your notes on the cloud by taking pictures of your notes and automatically enhance it. When you write using Pilot pen, your writing will erase magically with pen point or a damp cloth and hair drier.
Compare to Rocketbook
| Elfin Notebook | RocketBook Wave | RocketBook Everlast | |
| Erase | Damp cloth / Wet tissue / Hair drier | Microwave oven / hair drier | Moistened cloth |
| Reusable times | 10 | 5 | Infinitely |
| Page | 80 | 80 | 32/36 |
| Cloud Storage | Support | Support | Support |
| Price | $19 | $27 | $34 |