They work, feel better than my last under armor ones. They were also 10 bucks less than the Nuusols. Got a lot more out of my workout than without the straps. As previously mentioned, cleaning is as easy popping the ball out with my index finger, removing the build up (which surprisingly, is less than my M570, during a similar period of time), and popping the ball back in. I am very happy with the product, especially with the rubber base caps for freshness. Ill be using it in the car when you need a handsfree device while listening to music. I cannot remember the last time I purchased a product that became useless this quickly. Works perfectly with the Yeti X as advertised. I really love the soft padding on the feet and how it allows me to tighten the feet a lot without scratching my cars finish. The item came in an amazon box which was in good shape, but once I opened the Amazon packaging box there is this actual item box ( pics attached) that was pretty beaten up and retapped.