Review on Definition Marking Warehouse Supermarket Cartridges by Peter Burkart

According to my experience, these pricing supplies were a complete waste of money. They were marketed for industrial and scientific use, but they didn't last long and the ink was often faded. The only pro was the quick shipping, but I would have preferred if they spent more time ensuring the product was actually good. In the end, I had to purchase a different brand of cartridges, which worked much better and at a lower cost. Save your money and look elsewhere.