Thunder (TM) GD88 Hydroponics Indoor Grow Tent Greenhouse Box Room 80-Inch x 96-Inch x 96-Inch - 5 Year Manufacturer Warranty 10 Vent Holes (2) 4" Diameter (4) 8" Diameter (4) 12" Diameter Dimensions 6.6' x 8' x 8' (H x W x L) / 2 Windows 20" x 12" Heavy Duty 600D Mylar. Inner Lining Material is 100% highly reflective water-proof Mylar Sturdy Metal rods with Connectors. Rectangle windows with mesh for better ventilation 5 Year Manufacturer Warranty !