Hydrobay 48"x96"x80" Mylar Grow Tent for Indoor Plant Growing All Hydrobay Tents are made with the serious grower in mind, but at a budget price Hydrobay Tents are all Heavy 600D material, that can withstand most abuse and wear and tear Our Tents are Designed to be "light tight" enclosures, with mylar inner zipper flaps, not non reflective material Vent Ports 2: 8.75" (upper side), 4: 10.75" (lower side and top) 4: 3.5"(back wall) All Poles and Corner Joints are Full Metal and will support most any Hydroponic Lighting System