The Cage is constructed of nonconductive, high-strength fiberglass-resin composite. The Cage is fully adjustable in one-foot increments, allowing the operator to adjust the platform height to the job at hand. Each side adjusts independently, so operators can also use the Cage over uneven surfaces or stairs, where a mechanical lift or ordinary stepladder could never go. And the Cage protects operators in a fully enclosed working platform, allowing them to work safely and quickly with two hands while complying with industry regulations. The Cage comes with the Wheel Lift Casters that allow you to easily move the Cage from place to place while fully deployed.