Enclosure kit only, the canopy frame and cover sold separately Include front door, side cover and back cover. Fits all 18 x 20 ft. 1-3/8 in. diameter canopies Heat sealed seams not stitched for a stronger bond 100% water resistant enclosure kit Constructed of ripstop woven polyethylene fabric Added UV protection, fade blockers, anti-aging, anti-yellowing and anti-microbial agents The Flyline Enclosure Kit delivers more options, and more versatility to your canopy. You can quickly convert your 18 x 20ft, 34mm diameter fixed leg canopy to an enclosed shelter in minutes. The enclosure kit attaches to the frame quickly and easily with bungee fasteners. The outdoor shelter can create a great low cost seasonal storage solution in minutes. The canopy frame and cover sold separately. Features: Enclosure kit only, the canopy frame and cover sold separately Include front door, side cover and back cover. Fits all 18 x 20 ft. 1-3/8 in. diameter canopies Heat sealed seams not stitched for a stronger bond 100% water resistant enclosure kit Constructed of ripstop woven polyethylene fabric 50+ UPF sun protection blocking 98% of harmful UV rays Added UV protection, fade blockers, anti-aging, anti-yellowing and anti-microbial agents UV protection treated inside, outside and in between