VEVOR Walk-in Tunnel Greenhouse, 20 x 10 x 7 ft Portable Plant Hot House with Galvanized Steel Hoops, 3 Top Beams, 4 Diagonal Poles, 2 Zippered Doors & 12 Roll-up Windows, White

Excellent Air Ventilation: With 12 mesh windows, our tunnel greenhouse can keep out small "annoyances" and increase cross ventilation and airflow. Moreover, we have 2 roll-up zipped doors for air to freely enter and exit. Keep your space clear of debris and make sure every breath you take is one to remember. Upgraded Galvanized Frame: We upgraded he galvanized steel to 0.8" diameter and 0.02" thickness. This high tunnel greenhouse has 3 top beams to prevent rain and snow buildup on the dome. Moreover, the diagonal poles can ensure stability during extreme weather. We have got you covered, so get ready to see your crops grow all year round. 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 hoop house greenhouse is easy to assemble with connectors, and screw covers can prevent scratches and rust.Includes 4 ropes, stakes, and guy ropes for added security, stability, and strength. Note: Do not tighten screws until the final position is confirmed. Warm Home for Plants: Our 20 x 10 x 7ft green house provides the best solution for cultivating vegetables, flowers and creating beautiful landscapes efficiently. The hoop house kit protects plants from the cold, frost in winter; it creates a better environment by increasing the air flow in summer.