Here is my review for your product:

Pros:

• ECO friendly
• Very powerful paper and have great feature
• Made of stone is a cool idea
• Durable than normal paper

Cons:

• Nothing for this product

My comment:
It is a very innovative idea. Yet it is not a new idea.

For this product, I like to mark it as
8.6/10

Good work on hunting, thank for bring us a good product

(Please noted that it is my personal opinion only)