Oasis 4' x 4' Reflective Material Hydroponic Light Proof Grow Tent Reflective Material (True Light Proof Tent) Clear windows that you can actually see through the tent! Strong and durable with steel poles and a removable floor layer, leaks and spills are easily contained Air tight zipper for maximum odor elimination Dual-sided duct openings allow you to tighten the canvas material around your ducting