The walk in greenhouse cover is made from polythene, which has excellent insulation properties as well as being flexible, protecting plants and vegetables from winter chill, spring frosts and animals. The cover has a roll up front panel with zip for easy access and ventilation. Ties are also sewn in to attach the cover round the greenhouse frame for stability and security.REPLACEMENT WALK-IN GREENHOUSE: Reinforced mesh cover is a perfect replacement for walk-in greenhouses measuring H195cm x W143cm x D73cm. We recommend measuring your greenhouse frame before purchase to ensure the cover is the correct size.HIGH-QUALITY MATERIAL: Made of high-quality mesh lined PVC material, corrosion-resistant, sturdy and durable. Widely used, it can keep plants warm in extreme weather, so that plants can survive and grow better.ROLLABLE DOUBLE ZIPPER DOOR: Rollable door with zippers on both sides, which can be easily opened and closed. Just unzip the zippers on both sides, roll up the rollable door and fasten it with straps. Convenient for you to enter and exit the greenhouseEASY TO INSTALL AND MOVE: The greenhouse cover is easy to install and store, which can meet your needs for indoor and outdoor use in different seasons. Suitable for planting, seedling raising, potted plants and display. REPLACEMENT COVER ONLY. FRAME NOT INCLUDED: Please note that this is a replacement COVER ONLY. The greenhouse frame does not come included.