Be sure to use olive, avocado or food grade mineral oil very lightly rubbed into the surfaces after each use. (You can get the food grade mineral oil at IKEA). I prefer the avocado oil. It really seals the porous surfaces of the boards. Convenient sizes for various chopping needs. 

 

 

Pros:   Well done, using sustainable products, large size to small for various cutting, slicing, chopping needs.
Cons:   Do not forget to lightly oil between each use.