Description: KEEPS ALL LIGHT IN: The grow tent blocks all light from escaping and is lined with 98%-reflective mylar to boost the output efficiency of any grow tent setup EXTRA-THICK CANVAS, STANDS STURDY: The top-quality 600D canvas is tear proof and double stitched for perfect light blocking; the canvas is supported by strong metal poles that are specially finished for smooth installation ATTENTION TO DETAIL: Little is more annoying than a low-quality zipper, so we’ve gone to great lengths to ensure our heavy-duty metal zipper is the best on the market 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 36″X36″X72″ (90X90X180CM) GT3672