The red PowerZone fibre strip is a key feature on this Vileda Easy Twist Mop Pad Refill and it\'s specially designed for extra cleaning power on stubborn dirty marks. Combined with the Vileda quality microfibres, this mop pad provides a thorough clean and is perfect for removing dirt and grime from your floors. The Vileda Easy Twist Refill can be machine washed at up to 60°C to ensure it stays fresher for longer. This is a refill for the Vileda Easy Twist Mop (available to purchase separately).