The 4-Tier Greenhouse offers optimal plant protection against frost, cold wind, snowstorms, and pests, ensuring a warm and sunny environment for both indoor and outdoor plants. Its sturdy frame, made from powder-coated steel tubes (16 mm diameter and 0.4 mm thickness), is rust-proof and durable, extending the greenhouse's service life. The weatherproof PVC cover is reinforced, corrosion-resistant, waterproof, and UV-resistant, protecting plants from rain, wind, birds, and strong sunlight.