About this item Optimizes Light: The VIVOSUN Roof Grow Tent blocks all light from escaping; The interior 100%-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 Fast Installation: Our 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 Easy Observation: Don't throw out your back bending over to check on your plants; Our easy-access door unzips smoothly, and the observation window makes it easy to peek inside without disturbing your setup