This MetalTech outrigger set is designed to provide extra stability for rolling scaffolds. For use with Model No. I-CISC (SKU 777823). Includes four 5" double lock casters and eight locking pins. Easy assembly; meets OSHA (Occupational Safety and Health Administration) & CSA (Canadian Standards Association) requirements. Set of 4. Includes (4) outriggers (4) 5" double lock casters (8) locking pins.