outerRadius property
        
        dynamic
        outerRadius
        
      
getter/setter pair
      In a gauge chart, this option determines the outer radius of the
plot band that stretches along the perimeter. It can be given as
a percentage string, like "100%", or as a pixel number, like 100.
API Docs: https://api.highcharts.com/highcharts/yAxis.plotBands.outerRadius
Implementation
dynamic outerRadius;