Manufactured from 300 series stainless steel, 22 gauge (high strength and durability). Anti-jam lugs make stacking easy without trays getting stuck together. Reinforced corners with pour design: provide greater strength in high-wear areas and allow for more precise pouring. Reinforced perimeter edge, enhancing food presentation and stability. Flat edges prevent warping and make it easier to grip when removing the tray. Patented sloped ramp design allows the tray to be removed easily with a simple motion.