20x10x6.6ft Heavy Duty Outdoor Walk-in Tunnel Greenhouse Portable Garden Planting Warm House with PE Cover GreenDetails: Large Walk In Greenhouse: Garden greenhouse kit is an ideal way to extend your growing season while easily managing your plants and protecting them from light rain and harmful sun rays. Drainage Circulation Function: Large roll up window on each side of the green house for cross ventilation on hot days and drain away water and reduce pressure to the poly tunnel greenhouse's frame. Hinged door for easy access, which is more stable and