You can add the various attributes from the attribute section of the catalog then you can add that particular attributes to your products when you try to add a new product.   

Follow these steps

1. Go to the catalog section

2. Click on subsection named 'Attributes'

3. Click on 'Add Attribute' button 

4. Fill the details of the attributes

5. Click on the 'Save Attribute' button to save the changes

For video click here