Large 96"x48"x78" Reflective Mylar Hydroponics Grow Tent Dark Room Box Hut Size: 96"Lx48"Wx78"H Do NOT have any PVC materials, which is known to release a chlorine based toxic gas that may harm the plants. Powder coated anti-rust metal frame; Thick 5/8" top cross hang bars for heavy grow lights. Vent: Round 8": Two; Round 6": Four; Round 3.5": Two; Rectangular 18"x2.5": Six One inside thermometer pouch and one bottom tray