This black retractable mesh door offers a practical safety barrier for wide channels up to 3 meters, making it ideal for stairways, hallways, balconies and large openings. With a total height of 86cm and a mesh height of 79cm, it provides reliable coverage while maintaining good visibility. Constructed from aluminum alloy, ABS plastic and durable PVC mesh, it features a smooth retractable mechanism and black surface coating for long-term use. The one-pull retractable design is easy to operate, helps block access to dangerous areas, and suits homes with children, pets or elderly family members.