Dockzilla redefines industry standards with a 13” restraining zone that secures more trailers, including new 5-sided RIGs. It is the only restraint built with an industrial-grade steel extension spring backed by a lifetime warranty, eliminating quarterly servicing required for gas springs. The low-profile, non-impact design prevents RIG damage while accommodating lift gates and vans, and the automatic LED safety light system maintains communication by signaling status to dock employees, forklift operators and truck drivers simultaneously.