Features: Metaltech "Contractor Series" Outrigger System for Maxi Square Scaffolding Set of 4 outriggers for Maxi Drywall scaffold Includes 4 - 5" Double Lock casters and locking pinsYellow Thermosetting Polyester Finish1000 Lbs capacityEasy to assembleMeets OSHA RequirementsUse with 6 FtMulti Purpose Maxi Square Scaffolding (I-CISC) 16.50 L. 24.25 W. 4.25 H.