Why does it work better than a meat mallet?Simply stated, its razor sharp stinless steel knives surgically slice through the connective tissues in meat that cause it to be tough.Features include: 15 stainless steel knife blades penetrate meat in seconds. Durable, sturdy ABS composite columns. New removable cartridge design makes cleaning easy and complete. The benefits of using a Jaccard Meat Tenderizer include: It reduces cooking time by up to 40%. It provides for deeper and quicker penetration of marinades and rubs. It provides thin channels for heat to penetrate the meat and ensure even cooking across various thicknesses (e.g. high/low spots in chicken breast).