make sure you match the the exact size number that your computer is. Time will tell if it last. When I took them out of the pouch they came in I was thinking they look a bit narrow and that they werent going to fit, but I was wrong! The Sennheiser Hd 600s is lacking in this category. The ear cushions are comfortable, even with glasses on during an 8+ hour workday. Pretty cool, huh?? I opted to try the ?pull apart method? using channel lock pliers. This is the Topeak stand just with Performance branding on it (IOW, Topeak made it, Performance sells it under their brand). One other improvement I made is to add 2 small stick on bumpers to the hanger arms at 2 locations. Whenever I purchase size 7 heeled sandals, they fit perfectly, but these had to get them in 7. Still, at the price point and with all the features, I think these are the better buy.