Double the growing power with this Outsunny outdoor planter. A steel garden planter base with top plastic cover: using together is best, but can be used separately. The steel base is galvanised for strength and suitability outdoors: the open bottom means no water build-up, as well as direct soil contact for best plant growth. The plastic cover creates a safe shield, complete with two windows for access and fresh air. Features: Duo design: Comes with a bottom garden bed and top cover - use pieces of this raised planter and small greenhouse together or separately Plastic cover, with two windows: A protective shield for growing plants inside mini greenhouse. Traps heat in. Two roll-up windows to access inside easily, also brings fresh air in too Open-bottom steel base: Galvanised for extra strength, it provides a strong fence for plants. No bottom in planter box to allow direct contact with soil water doesn't build up either 10cm extended cover edges: Dig into soil, creates extra stabilit