WALK-IN GREENHOUSE: 6' x 4' x 6' walk-in backyard or garden greenhouse extends your growing season and grows plants faster by retaining heat and slowing evaporation, and can be used indoors or outdoorsDURABLE STEEL FRAME: 1-3/8" steel frame with premium powder coat finish resists chipping, peeling, rust and corrosionLONGLASTING COVER: Luminate Light Diffusion Fabric is a triple layer ripstop translucent 5.5oz. Polyethylene, and is waterproof and UV-treated inside and out for sun protectionREDUCES HARMFUL RAYS: Translucent fabric allows a significant amount of diffused light to reach the plants, while reducing the amount of harmful UV lightADDITIONAL VENTILATION: Features Quick-Snap roll-up side panels and half moon shaped zippered screens on both end panels, which adds airflow and temperature control