Hi How to design a business object?

I have a library which returns me an Object which have ten lists of other different objects. I need to store it into database all. List of objects are often like:

class Item {
   private int id;
   private String name;
   private double point;
}

But the name is often the same. Like basic title of the product or code. Containing from 3 characters up to 70characters.

Should I make conversion for every Object to: (or something similar)

   class ConvertedItem {
      private int id;
       private int code;
       private double point;
    }

And have a separated table of codes ( I guess around 60).

Or do not bother with duplicated stuff?

It's not mission critical app. What would you do in my case?

thanks in advance