TIPS: They will be very hot when they come out of the dryer, so be careful not to burn yourself. EAZY TO USE: Use 2-4 balls for maximum effect, you can also add a few drops of essential oil to make your clothes smell nice. HIGH EFFICIENTLY AND ECONOMIC: This drying ball helps your clothes dry faster in the washing machine, shortening drying time and reducing utility costs. SAFE AND DURABLE: Made of eco-friendly PVC, the laundry spike ball is non-toxic, reusable and recyclable, and safe for all fabrics. Can be reused many times. REDUCING CREASES FOR CLOTHES:Keeping the hot air moving, the soft spikes on the ball massage the fabric, reducing creases, twists and tangles in your clothes and reducing your ironing time.