As displayed on some pictures, they lay perfectly straight. However, due to the holes and irregular shapessize, they do NOT lay straight! Drove me nuts! 
I changed the angle and allowed the organic nature of these beautiful tiles to lay exactly how they were meant to lay…not straight. Turned out so much better!
LOVE, love, love the way they turned out! It added the perfect amount of texture and interest to an otherwise blank wall. 
Really happy with this purchase!!!!