The dryer balls have been scientifically tested, based on ISO standards and by an independent textile care laboratory, showing that:

• Textiles become considerably softer
• The drying time is reduced by up to 25%
• The laundry wrinkles less
• Less fluff is released

The pink and blue dryer balls are softening balls and have different tensile strength (one is harder than the other) and have differently shaped pimples. The two softening balls are designed to work together to lift and separate the laundry in the dryer. They also absorb heat and release it to the clothes during drying, which speeds up drying.