Square Steel block with machined end faces (Magnets not included) Use as a square, heavy weight, as a clamp, as a folding bar with vice, or with our magnets as an assembly aid for modellers. Approx size 2" x 1" x 1" This is made from Bright not Black bar so the corners are sharp and quite accurately sq. It is not ground perfectly sq, for such a product, you would pay a lot lot more money.