Bought these after one of the ear pads on my QZ-99s started leaking their precious mineral oil which was not at all alarming or weird. (In their defense it took nearly 5 years of daily use.) These fit the QZ-99s perfectly, are comfortable, and don't appear to have affected their Isolation abilities, at least not enough to matter. Very satisfied.

Cushions fit perfectly and work as advertised

Would be good if the web page listed which headphones these are compatible with. Based on QZ in the name I took a chance and they fit.

Easy to install, nicer than original earpads, and less expensive than what I bought on Amazon. In photos, QZPRO pads are on the left, some I bought on Amazon (Brainwavz Replacement Earpads for ATH M50X) on the right.

Y'all crushed it, how every transaction should be. Easy to find support, easy to order, good communication, timely updates and speedy delivery. I do not say so lightly. Well done.

Since I didn't know the model number for my earphones I took the chance that these would work. They fit perfectly and, I think, work better than the liquid filled ones that I was replacing.