1. By High Quality, Premium hardwood, the boards is easy to clean, good to knives, safe from bacteria, and very long lifespan.
2. End grain construction for maximum durability. The end grain is generally 10 times harder than egde grain cutting boards.
The end grain will not show knife marks like the edge grain cutting boards, when the knife strikes the surface during cutting, the grain of the wood actually seperates and then closes when the knife is removed. This accounts for the "self-healing" aspect of the end-grain surface. The wood itself is not cut, but instead you are cutting between the fibers.
3. End grain cutting surface keep your knives stay sharper, it won't damage & dull the cutting edge of your expensive knives.