Where are the Tumble Dryer Balls manufactured? January 28, 2022 14:52 The Tumble Dryer Balls are made of 100% wool and are made in Nepal. Related articles Allergies – can I use your Laundry Detergents? Where are the Laundry Detergents manufactured? Where is the Space Saving Hanger manufactured? What to do with clothes still smelling bad after washing them? What are Tumble Dryer Balls and how to use them?