Freebies is an Add-On. If you don't see them when viewing a product you can install the Add-on.
You can automatically add a free product to the customer's shopping cart when they select a product. This can be done two ways:
Freeies has the benefit of displaying the free product(s) the customer will choose from when viewing the product details.
To add free products to a product:
The product will appear on the right. If you want to remove a product click on the red cross.
When the product is added to the shopping cart, the customer can choose which of the free products they can add to their order.