Review on 20-Pack Blank Wood Boards for Crafts - MDF Chipboard Sheets (12x12 Inches) by Heather Shaw

I agree with all other reviews posted here. This is a strong, durable MDF board, perfectly flat and easy to work with. But if you're buying it to use with a laser engraving machine (I use Glowforge), note that it's much denser than the drawing board that Glowforge sells. I had to do multiple passes at a slower speed just to cut through it, whereas the roughing board sold by Glowforge cuts cleanly in one pass. I don't think that's a downside to this product - the company advertises it as reusable. craft board and it certainly fits that description.