Made of all steel DuPont thermoset baked on powder coated finish which resists rust and corrosion ShelterLogic's patent pending ShelterLock stabilizer block at every rib connection adds rock solid strength and stability to frame Bolt together hardware at every connection point ensures maximum strength and durability; ShelterLogic's ratchet Tite tension system and easy-glide sliding cross rails keep the cover smooth and taught Advanced engineered, commercial grade polyethylene woven fabric is UV treated inside and out to stand up to the elements Universal foot plates for easy and solid connection to ground anchors, cement or pony walls