The HD-7500PBX includes multi-position safety locks in each column, giving users adjustable height positions for boat storage, vehicle storage, and variable-height parking. A push-button pneumatic safety release allows all four locks to release simultaneously, while spring-loaded safety locks engage continuously as the lift is raised. For added protection, the safety system also includes a secondary slack-cable device for emergency support. Combined with a durable powder coat finish, enclosed critical components, and BendPak's heavy-duty lift construction, the HD-7500PBX gives boat owners and storage operators a high-rise dry-docking solution that is built to work hard season after season.