ShelterLogic 18-Feet Super Max Canopy Accessories Enclosure Kit Fits all 18 x 20 ft. SuperMax 2 in. diameter canopies Constructed of ripstop woven polyethylene fabric with heat seal seamed, not stitched, for a stronger bond Added UV protection, fade blockers, anti- aging, anti-yellowing and anti-microbial agents Quick and easy set-up attached to canopy frame in minutes with bungee fasteners, reuse your existing bungees or reorder ENCLOSURE KIT ONLY - CANOPY FRAME AND COVER SOLD SEPARATELY