The Grow IT Greenhouse-in-a-Box with Easy Flow roll-up side vents delivers quality construction, quick and easy assembly and best-in-class value. Ready to build out of the box, the Grow IT Greenhouse-in-a-Box with Easy Flow features a DuPont powder-coated 1-3/8 in. steel frame with Shelter Lock steel stabilizers for added strength and durability. The translucent, rip stop cover is waterproof and UV-treated, providing enhanced illumination, for plant growth and protection. Easy Slide cross rails ensure a snug cover fit while Ratchet Tite tensioning provides solid cover anchoring to the frame. Easy Flow side panels and zippered half-moon end-panel vents provide airflow and temperature control. Patent pending Shelter Lock Stabilizers ensure a stable, durable shelter. Easy Slide Cross Rail system and Ratchet Tite tensioning for solid cover anchoring to the frame.