About this item Traps All Light: The VIVOSUN grow tent blocks all light from escaping and is lined with 100%-reflective mylar to boost the efficiency of your grow tent setup; Zipper with black lining creates a lightproof seal without the need for additional flaps or self-adhesive tape Extra-Thick, Stands Sturdy: The quality 340 g oxford is tear-proof and double-stitched for complete light blocking; The non-toxic PE lining is safer for your plant, and the tent is supported by strong metal poles that allow for smooth and easy installation Easy Observation of Your Plants: Don't throw out your back checking on your plants; Our easy-access door unzips smoothly, and the observation window makes it easy to peek inside without disturbing your growing set-up Fast Installation: Our grow tents are easy to install, even if you've never done something like this before; Unrivaled craftsmanship and materials make our grow tent the good choice for professional growers and amateur alike More Options, Simple Assembly: We pride ourselves on delivering a selection of grow tents at various sizes; With the guidance of the manual, you can assemble the tent in a matter of minutes