The Pop Up Tomato Accelerator is designed to create a microclimate for young plants getting them off to a healthy start. The greenhouse fabric allows you to plant earlier and protects from cold temperatures and harsh winds. It’s easy to use; just pop it open and place it over your plant. The vented top allows warm air to escape when the weather gets warmer. You can even upzip it and leave it fully open if needed. The large size allows you to keep it on until the plant is quite large unlike other season extending products on the market, ensuring your plant can be pampered longer. Also good for peppers and eggplant too.