Whether for your home or your business, any size chopping board can be found at this stall in the Mercado Merced. No matter what taco joint you pass in the city, you'll see all of them using these exact chopping boards/blocks to prepare the taco filling. Over time, as with any well used and seasoned utensil, these blocks become concave in shape due to nearly non-stop daily chopping of everything from beef to sausages to selected innards like tripe. Yum!