Spacious walk-in tunnel greenhouse creates a protected area that makes daily gardening easier and extends your growing season. A reinforced PE cover works with the galvanized steel frame to form a waterproof, tear-resistant shell that helps keep plants cooler in summer and warmer in winter. The 42 x 69 in zipper door rolls up for convenient access, while eight 14 x 14 in mesh windows promote ventilation and humidity control. Wind ropes, ground stakes and an extended bottom edge enhance stability for outdoor use.