There is 1000x1000 pixel canvas, divided into 10x10 chunks with 10000 chunks overall (9999 unminted).
Each chunk is a CanvasToken, after minting/buying one, you'll be able to set an image, description and URL into it (and edit it as much as you want).
Minting costs 10 MATIC.
You can use these blocks to promote your collections, projects, websites and more.