Replacement greenhouse cover is designed to fit greenhouse frames measuring H125cm x W69cm x D49cm which is the most common size of 3-tier mini greenhouse frames. It’s a perfect replacement if your existing frame is badly worn or damaged. Durable Reinforced Cover The cover consists of a white internal grid sandwiched between two layers of polyethylene for superior strength. Its far thicker than a standard PVC cover to reinforce the frame and provide greater wind-resistance. Ties allow you to easily secure it to your greenhouse frame. Promotes Healthy Growth Because the cover has a white internal grid, rather than a green internal grid like most greenhouses, it allows plants to absorb the levels of blue and red light they require for healthy growth. It also keeps them warm and insulated from the cold at night. Roll Up Zipper Door The door has zippers on either side to easily open and close. Ties at the top allows you to secure the door when rolled up to easily water plants and flowers.