[Drainage System & Galvanized Base]The drainage gutter system can effectively drain water from the greenhouse to the outside. The sloped roof won't accumulate water on the top. alvanized base can be better fixed in the soil and protects the greenhouse from bad weather. [Sliding Door]The sliding door makes you easier to get in and out, also protects your plants or flowers from animals or pets getting inside. All detailed instruction are included already, so you can simply follow instruction to assemble. [Adjustable Roof]An adjustable roof is convenient for insects to come inside to collect pollen, helping to sow seeds and also providing fresh air at all time. A great ventilation system is built for your plants. [Heavy-duty & Durable Frame]The 4mm thick polycarbonate board can withstand outdoor temperature from -20℃ to 70 ℃, allowing enough sunlight to pass through and isolating most UV rays. The aluminum alloy frame with powder coating is more durable, won't get rust. The panels allow up to 70% light transmission for optimal plant growth while blocking out over 99.9% of harmful UV rays. [Walk-in Spacious Greenhouse]The ideal growing environment is large enough for you to plant numbers of plants, flexibly arrange your plants and flowers inside. Protecting your plants from frost and excessive heat, the green house creates a greenhouse effect to achieve and the best results of planting. Main Color:Green Main Material:Aluminum