Kickstart your growing season with the Bond Bloom 4-Tier Greenhouse. Constructed of heavy-duty, powder-coated steel shelves and framework, this greenhouse will help to create the flourishing conditions that are necessary for your vegetables and plants to thrive. The strong and transparent reinforced polyethylene wall and roof creates optimal solar heating. This 4-tier mini greenhouse features a zipper roll-up door with tie fasteners for easy access. Four ventilated shelves will hold a variety of plants and vegetables. It contains 9 feet of work space so that you may tend to your garden efficiently. Assembling the greenhouse is easy. Green.