Why You Should Use Tumble Dryer Balls Instead of Fabric Softener These eco friendly dryer balls are an excellent way of saving money on your Tumble Drying Costs they can cut the drying time by up to 25%. Especially designed nodes help break time the stiffness that’s costs by water drying in the fabric. Therefore you don’t need to buy a separate fabric softener or fabric softening sheets. They’re really simple to use you just pop them in with your drying and off you go. Thanks for watching.