Commerce Extended Quantity

Allows to set quantity field’s default_value, step, min, max, prefix and suffix on a form display widget. Additionally, validates user input on the field and order item availability both on the Add to cart form and Quantity column of the Shopping cart table. See more on the module’s Github repository:

https://github.com/drugan/commerce_xquantity


Source: https://drupal.org/project/project_module/feed/all