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 Where are the Laundry Detergents manufactured? In what countries can I use my steamer? Heat Protection Bag vs. Tote Bag? What makes your detergents so special? What to do with clothes still smelling bad after washing them?