Prevent cranes, hoists, and other machinery controlled by pendant switches from starting up during maintenance. Unlike soft lockout bags, these lockouts have rigid sides that keep control buttons from being pressed while work is underway. With space for four padlocks, multiple people can safely work on the same equipment. These lockouts expand to fit over most switch sizes, and collapse flat for storage. They help you comply with OSHA 29 CFR 1910.147 procedures for the control of energy sources that could injure workers.