collaborated with a home safety product brand to customize anti-misopening hardware locks for baby safety doors. Using high-strength zinc alloy material, through precision die-casting and polishing processes, the lock structure is firm, impact-resistant and not easy to damage, meeting baby safety standards. An innovative double-button anti-misopening design is adopted, which requires pressing two buttons at the same time to open, preventing babies from opening it by themselves. It is easy to install, suitable for various scenarios such as wooden doors, anti-theft doors and fence doors. The surface is treated with environmentally friendly spraying, with uniform color and no odor. This customized lock helped the partner increase safety door sales by 40% and reduce user complaint rate by 75%.