SpinButton

<SpinButton 
  defaultValue="0" 
  label={'Number of subjects to add:'} 
  min={0} 
  max={100} 
  step={1} 
 // iconProps={{iconName: 'IncreaseIndentLegacy' }}  
  incrementButtonAriaLabel={'Increase value by 1'} 
  decrementButtonAriaLabel={'Decrease value by 1'} 
/>