This stainless steel security door features a one-way function for controlled entry and exit, ensuring safe passage. Available in multiple sizes: 50×97 cm, 60×97 cm, 70×97 cm, 80×97 cm, 90×97 cm, and 100×97 cm. Constructed from high-quality stainless steel, it is thick, durable, and resistant to deformation. The mirror-polished surface is smooth and sturdy. Customization options include size, surface treatment, and spacing. The door automatically closes after use and cannot be pushed back, preventing unauthorized entry. Suitable for various scenarios such as supermarket entrances, factories, schools, and stations. Package includes two security doors.