Reflective to Save All Light: Hydroponic grow tent comes with heavy-duty metal zippers, double stitching seams and reflective Mylar lining, gives an efficiency boost to lighting setups of any power configuration, great to save all light into the grow light tent SELECTED MATERIALS: Uses high density 600D Oxford, tear proof and double stitched for perfect light blocking. The reinforced metal poles ensure security and stability. Heavy Duty Zippers: Zippers safeguard your grows, and offer you easy access to your indoor grown plants in this plant growing tent kit Practical Design: Drawstring ports for electrical outlet. Ventilation windows allows airflow in small grow tent. Vents on the propagator tent top and side with spring buckles to open or close to controll the ventilation TOOL BAG INCLUDED. ASSEMBLY REQUIRED.