Bamboo is cut, and put sideways, so that the grain runs down the board. The end of the grain, is actually at the 2 sides of the board. This board will look sharp, and will hold up well. The knife will make marks in the board, but mostly the knife is still sliding in the grain.
You will be hard pressed to find such a nice board ANYWHERE, especially at our direct to you pricing. End grain boards are better boards than Plank style boards because the knife will slide between the end fibers on the board, rather than slice into and crush the top surface fibers. The result is that your knife will stay sharper longer and your board will look better and last longer. Large Chopping blocks were always made of end grain hardwood for this very reason.