About this item Thick and Safe: VIVOSUN tents are made of 600D Oxford fabric, PE material, and 98% diamond reflective mylar; PE material does not contain heavy metals or phthalates, itҳ non-toxic; The tents are durable and safe for your plants New and Modern: Our gray grow tent provides the same amazing durability and features as the original black grow tent; They can create the excellent growing climate for your plants Built-to-Last: Unlike other brands, VIVOSUN insists on using strong metal frames, sturdy corners, accessible viewing windows, tightly reinforced seals, and durable zippers to support the weight of your tent; It also prevents light seepage and maximizes the reflectivity of usable light Assembled in Minutes: Removable hanging bar provide overhead support for lighting and ventilation systems; Suitable for use with all growing systems (hydroponic, aeroponic and soil-based cultivation) We Care: Quality backed by our ironclad, hassle-free 1-year warranty; It features an anti-burst metal zipper that slides easily on the track and stays shut; Suitable for use with all growing systems (hydroponic, aeroponic and soil-based cultivation)