This 9x12" beechwood chopping board is perfect for mathematically precise cooking. Recipe calls for 1 inch cubes? No problem. "Finely chopped"? What does that even mean? The Obsessive Chef has you covered. It'll even help you with angles.
I used mine recently for a geometrical proof of Pythagoras. Proof by snack!
Price = p251 pence = £15.97