Number fields allow you to add number input fields to your WooCommerce product.
To add a number field, just choose ‘Number’ from the ‘Field Type’ dropdown list.
See this article for an overview of the standard parameters available to number fields.
Name your price parameters
Number fields have some parameters that are not shared by all fields:
Enter the minimum permitted value.
Enter the maximum permitted value.
Check this field if you would like to multiply the value of the field by the field price.
If you are specifying a minimum or maximum number of checkboxes, you might need to ensure that ‘Required field’ is checked in order to ensure that users select the required number of checkboxes.