Number Range Spinner is Angular JS directive which is used for incrementing-decrementing integer/decimal value using button.
For detailed explanation: https://javabypatel.blogspot.com/2015/12/number-range-spinner-angularjs-directive.html
<div range-spinner
range-min="1"
range-step="1"
range-max="50"
range-default-value="10"
range-decimal-precision="1"
range-model="rangeModel"
accept-decimal=false
name-of-field="rangeFieldName"
id-of-field="rangeFieldId">
</div>