Once you get them on they are a really good rack. :/ I have washed mine 7 or 8 times now and they still look brand new again, they are clips used to hold wiring in place. Ah, yes, they take 20% and postage. While these may seem a little pricey, after wearing them for a few weeks I feel I paid for a quality product. I connected them to my PC and went through my catalogue of music and must say they sound fantastic. Dafür sind die mittleren und höheren Töne dank der Technologie von IE800 sehr klar und kräftig. It broke within a week but I just replaced it with one I had lying about. So I added some with the free refills.