This greenhouse kit is made by a solid steel frame and high quality pe cover. Great for seeding or to protect your young plants from the outside elements. Shield plants from dust and gaze, and helps to keep out pests. Seeds and plants will live safely in proper temperature. The walk in greenhouse is lightweight but sturdy for long-lasting use. Roll up doors on the side of our plant greenhouse allows easy access as well as well ventilation. Easy and quick assembly is required.