Product attributes allows you to add additional descriptive details about a product. By adding these attributes potential customers can also filter your products by these attributes to help them better find the exact experience they are looking for. 

In order to create a product attribute, log into your account and navigate to Products > Settings> Attributes.  To create the new attribute select Add New in the top left corner of the screen.  

Name is the descriptive name of the attribute (the value.) A good way to think about this are things like level of difficulty, color, etc. If you can place these sorts of groupings to your products you can then create useful attributes. So, for level of difficulty you might be able to create things like "Easy", "Medium", and "Hard" or perhaps "Category 1", "Category 2", etc. 

Note: Each attribute should be created individually. So, if you wanted to assign "Easy" and "Blue" to a product you need to create an attribute called "Easy" and another attribute called "Blue".

After you create product attributes, How to Assign Product Attributes.