This hoop tunnel greenhouse serves as a plant nursery that helps extend the growing season, offering a walk-in growing space with quick setup; it allows you to control heat and humidity, block UV rays to prevent sun damage, and can house various greenery including vegetables, herbs, flowers, and saplings—you can even grow tropical plants to expand your planting potential. The walk-in greenhouse has multiple openings: it features a zippered roll-up door for easy access to the growing space, and you can roll up the sidewalls to irrigate plants from different directions; the large door and seven windows are lined with mesh screens, which keep out unwanted winged creatures while letting in fresh air and venting excess moisture. The outdoor greenhouse is equipped with a two-layer 140 GSM PE cover, which has a reinforcement grid through the middle to prevent tearing, maintains high humidity levels, and lets in 85% of nourishing sunlight without causing UV scorching. This large greenhouse is built for outdoor use, with a structure composed of four crossbars, four diagonal braces, and a reinforcing ground frame—all made of water-safe, bend-resistant galvanized steel; its sloped top prevents sagging and enhances stability against wind and rain, and to reduce wind impact, you can bury the 6" extended edges deeply in the soil to tighten the cover and pull guy ropes tightly from the ground stakes. Suitable replacement greenhouse cover SKUs include 845-616WT and 845-616GN; if you need a replacement cover, please consult customer service for product links. We recommend 2-3 people assemble the greenhouse, and it is not suitable for use in strong wind, heavy rain, or snow.