SUPER MAX 18 x 20 ft. Eight-Leg Frame Canopy HIGH GRADE STEEL FRAME - Heavy duty 2 in. / 5,1 cm diameter steel frame with a premium powder coat finish resists chipping, peeling, rust and corrosion. RIPSTOP TOUGH - triple layer woven polyethylene fabric material. UV-TREATED - inside, outside and in between with added UV protection, fade blockers, anti-aging, anti-yellowing and anti-microbial agents. PATENTED TWIST-TITE TENSIONING - Patented feature that squares up frames and tightens down covers for a clean and finished look. QUICK & EASY SET UP - With built in slip fit swedged tubing. Wide foot plates on every leg add stability/easy anchor points.