Column Climber, Combo Pack – Includes CC13 for Flanges 1.0” to 1-7/8”, Column Claw & T-Lanyard (Chain Positioning Lanyard) – Complete climbing kit designed for larger flange sizes. The pack includes the CC13 Column Climber for flanges from 1.0” to 1-7/8”, a Column Claw for secure anchoring, and a T-Lanyard chain positioning lanyard for reliable safety and positioning.