GSSI-C5 Features: -Dual locking, non marring wheels.-Sold individually.-360 Degree swivel action.-250 lb. load capacity per castor.-Intended for use with the Pro-Series 6 ft. Multi Use Scaffolding Unit (GSSI).-Meets OSHA and ANSI standard. Dimensions: -Overall dimensions: 10.5" H x 5.5" W x 2.5" D. Collection: -Pro Series Collection.