VEVOR Walk-in Tunnel Greenhouse with Galvanized Frame, Waterproof Cover and Cold Frames

This greenhouse is galvanized steel with mesh windows. There are 5 different sizes. The cover color is green, but white is an optional color for the greenhouse sizes 20x10x7 and 15x7x7.  Excellent Air Ventilation: With mesh windows, the tunnel greenhouse can keep out small "annoyances" and increase cross ventilation and airflow. Moreover, there is  one to two roll-up zipped door for air to freely enter and exit.  Upgraded Galvanized Frame: The galvanized steel is 0.8" diameter and 0.02" thickness. This greenhouse has 3 top beams to prevent rain and snow buildup on the dome. Moreover, the diagonal poles can ensure stability during extreme weather.  High-Quality Waterproof PE: The walk-in tunnel greenhouse comes with a PE cover, which can protect your plants from ultraviolet rays, rust, snow, and rain all year round. The size of the cover fits the frame closely, enhancing the warmth and wind resistance in winter. All Tools Included: The greenhouse is easy to assemble with connect