"I got these because they are eco-friendly, but I found more great things about them... they are safe on knives, absolutely dishwasher safe, and they look fantastic! There are no knife grooves or scratched edges like other cutting boards. If that is not enough, they are stain resistant too. Considering how durable they are, one would think they are think and heavy... not the case, they are thin and lightweight but are really sturdy."