CR Plate & General Cassette Mobile Holder for portable x-ray machines. 18″ square heavy steel base with protective mat prevents tipping. Vertical range from bottom of cassette/plate: floor – 54″. Arm slides vertically on 60″ chromed steel post. Holder locks onto post with spring-loaded pin. Comes with E-Z-Roll swivel casters, two are locking and neutral almond baked enamel finish.