Optimizes Light: The VIVOSUN Roof Grow Tent blocks all light from escaping; The interior 98%-reflective mylar lining optimizes your lighting setup and lets light reach your plants from all angles Extra-thick Canvas: You can feel the high quality of our canvas with just one touch of your hand; The 600D polyester material is tear-proof and double-stitched for total light sealing Durability: Our grow tents are solid, sturdy, and durable; they are supported by an easily assembled strong metal frame and a built-in roof; the frames are designed with care to ensure a smooth installation process and safe handling Easy Installation: VIVOSUN grow tents are easy to install, even for beginners; No additional tools are necessary--simply fit each metal pole into place and drape the tent around the frame VIVOSUN’s Quality Assurance: We pride ourselves on outstanding customer care; If you have any issues, please do not hesitate to contact our customer service; This grow tent is backed by our ironclad, hassle-free 2-year warranty