This heavy-duty walk-in tunnel greenhouse features a robust reinforced steel frame with rust-resistant coating for all-season durability. Includes 4 ventilated mesh windows and a zippered roll-up door for easy access and airflow. The transparent PE cover is waterproof and UV-resistant, maximizing sunlight for photosynthesis. Spacious interior accommodates shelves and pots, ideal for extending growing seasons and protecting vegetables and flowers from harsh weather conditions year-round.