VEVOR Walk-in Tunnel Greenhouse Galvanized Frame & Waterproof Cover 15x7x7 ftProduct Features Excellent Air Ventilation With 8 mesh windows, our tunnel greenhouse can keep out small "annoyances" and increase cross ventilation and airflow. Moreover, we have a roll up zipped door for air to freely enter and exit. Keep your space clear of debris and make sure every breath you take is one to remember. Warm Home for Plants Our 4. 5 x 2 x 2 m 14. 8 x 6. 6 x 6. 6 ft green house provides the best solution for cultivating vegetables,