This replacement SmartBlade cartridge goes with Commercial Bagel Biter model 3200 and includes one blade, locked between two sonic-welded polycarbonate safety shields. Whenever the Xylan non-stick stainless steel blade on your Commercial Bagel Biter gets dull, simply remove it and replace it with this new cartridge - you'll never need to put up with wasted time due to old, worn-out slicers again.