TL;DR: Reusable Rocketbook notebooks are on sale, saving you up to $18.

If you’re a notetaker, you probably go through your fair share of notebooks. That leaves your writings in different locations and a bigger carbon footprint on the earth (obviously not as big as the ones made by corporations, but still — reduce, reuse, recycle).

Rocketbook smart notebooks are designed to eliminate your need to buy more paper. You can write in them again and again and not run out of pages, and right now you can get Rocketbook bundles for up to $18 off the list price of $48.

So, how are these notebooks so reusable? The combination of special ink and special paper creates the perfect storm for an erasable notebook. The ink dries within 15 seconds and stays put until you wipe it away with a damp cloth.

The neatest part about Rocketbook is that you can scan your notes using the mobile app and store them on your preferred drive. Choose to keep them handwritten or the app can transcribe them so you have them typed out. And they’ll upload automatically via the cloud. It’s pretty freakin’ cool.

This bundle comes with an executive (6 x 8.8 inches) and a mini (3.5 x 5.5 inches) Rocketbook, two Pilot Frixion pens, and two microfiber cloths. Normally $48, grab it in black for $29.98 or blue for $31.79.