"While not perfect, we love dryer balls or tennis balls; [tennis balls] work especially well when drying down or feather-filled items like puffy jackets and pillows." However, they stress that it ...

What are tennis balls made of? Modern tennis balls are made of a hollow rubber core, covered in a wool or nylon shell which is known as the nap. Pressurised air inside the rubber core makes the ball ...

Or make that “Extra Duty”—as several items in the limited-edition collection, which includes hoodies, crew neck sweaters, tees and a cap, feature a twist on the tennis ball’s iconic ...