I was disappointed when I received these tiles because I was under the impression that they were completely black 12"x12" tile with equal amounts of completely white 12"x12" tiles but that is not the case. One 12"x12" tile is split up into two of each. Therefore they appear to be 6"x6" tiles. I wish there had been a clearly explanation. They were for use in a small space so I am a little disappointed that the tiles appear smaller. But due to lack of time to return the item, we used it anyway. I will say the quality is great for the price.