Safety Aluminium Expandable Access Barrier GATE 3M for DoorwaysProduct Features: Solid rubber 200mm central support wheel Solid rubber 50mm swivel locking castor at opening end Includes wall brackets for attachment to a wall at one end of the end supports Designed for use with warehouse doorways (Image shows 6M model, 3M model does not have center jockey wheel). Finish Powder Coated Retracted Expanded Height 1. 8M 1. 5M Retracted Expanded Length 0. 5M 3M Material Aluminium Weight 14Kg