Durable quality I have washed them in the washing machine 3 times since I received them a week ago. No signs of use. Velcro is still good and no different from the original Shark pads! As for cleaning the pads, I put them in the hot water of the washing machine with detergent and Oxy Clean powder! Holds up very well even more than 50 times in the washing machine in 5 months. Velcro is still good! Good product! Excellent quality!