Eclipse II Professional Shelters — Choose from either a specially formulated high-strength steel or aircraft-grade aluminum construction. Both feature steel-reinforced outer legs. The telescoping legs lock into place using a finger-friendly toggle lock-and-release system for easy height adjustment, while improved Auto-Slider pull pins release quickly and easily. A redesigned footpad offers durability. The 10 ft × 10 ft and 10 ft × 20 ft models also feature EZ-Up's unique "Stop Truss" design for additional support. A bolt-on top offers added stability in windy conditions. Other features include nylon corner caps for snag-proof top protection, a patented elevated center design for increased headroom, Auto-Peak technology that automatically adjusts the tension for a perfect fit every time, and double-braced oval-shaped trusses. The shelter folds with ease for compact storage. Storage back is included. 5 year warranty.