This is an invisible thread item and what you have is a beautiful gold sphere that is ultra light that measures 42 mm (a little over 1 5/8") in size that you will hook up as in the example of the second sphere that is already set with visible thread for practice.  Includes thread wrapped around a playing card and each is in its own clear plastic cube stamped Germany.  No instructions, you are on your own.  Condition very fine.