Our tunnel greenhouse features 8 mesh windows and a roll-up zippered door, ensuring excellent cross ventilation and airflow while keeping pests and debris out. Built with an upgraded galvanized steel frame (0.8" diameter, 0.02" thickness) that includes three top beams and diagonal poles, it provides reliable stability against rain, snow, and extreme weather. The high-quality waterproof PE cover offers year-round UV and weather protection, with all tools included for easy assembly and added security using ropes and stakes. | Boyel Living | | Walk In Tunnel Greenhouse Heavy Duty Outdoor Plant Protection | White | Best Buy