With four shelves for growing plants and storing supplies. this portable mini greenhouse is perfect for creating the ideal climate for growing all your favorite vegetables. fruits. and flowers. Durably constructed from aniron tube frame with steel wire shelves and a UV-protected polyethylene covering. this plant shelter is sure to last through many growing seasons. The durable cover protects plants from UV rays and inclement weather. like frost. excessive heat. and moisture. A roll-up door makes accessing your plants easy and allows you to control airflow in and out of the greenhouse.