This large-capacity lunch box injection mold is a classic product we developed specifically for the modern healthy diet, daily commuting, and family meal prep market. The mold design fully considers the high-frequency nature of daily use, with thickened box edges and high-strength purple snap-lock slider mechanisms. These locks, combined with a food-grade sealing ring (precisely fitted by the groove), effectively prevent leaks and spills, making it suitable for bento boxes containing sauces or soups. As a professional injection mold manufacturer, we have conducted in-depth optimization on the mold's draft angles, cooling channels, and deformation prevention.