Koss Portable Replacement Cushions,Black

perfect fit for my bigscreen beyond

They fit my Koss headphones. Didn't realize how bad the old ones were until I got these.

These foam ear pads seem fine, but I struggled to figure out how to install them on my Koss KTXPRO1 Titanium headphones. The original foam pads had deteriorated to almost nothing after a few years even though I don't use them often. I found it easier to work with by first removing the speaker part from the head band; gently pry the speaker part from the two pivot nubs of the head band. Work on one side at a time so you don't swap left and right speakers. I could slip the tip of a flathead screwdriver between the inner black plastic speaker part and the outer plastic silver enclosure, but it did not snap apart and felt like I might break something if I forced it.Actually it does snap apart, but there is a dab of stretchy adhesive on the center junction where the two parts snap together. Use a fairly wide flathead screwdriver so that you can twist it to create a big gap. Work your way around with the screwdriver until you have loosened the hold of the adhesive and created a large enough gap so that you can grasp the black plastic part with one hand while holding onto the silver enclosure part with the other. Gently twist a little but mostly pull it apart until it breaks free. See the image for how it looks when you get it apart.You might pick out any excess adhesive that may get in the way of reassembly. Pull or cut out remnants of the old pad and replace with the new pad. Gently tug it into place, and push your finger along the surface from the center to the edge to help evenly distribute the new pad so that it covers the spiky nubs. To reassemble first make sure that the rubber cord strain relief is wedged in the notch on the silver enclosure. Then align the fastener part on the back of the black speaker with the corresponding part in the center of the silver enclosure. It is challenging to tell if you have it aligned correctly, but with visual approximation and a light touch you can do it. Making sure the wire is not going to be pinned in the center snapping fastener, press firmly and it will click into place.

I had hoped these would be a fit for my QZ2000 headphones, the covers of which turned to sludge, since the product descrption said they were a fit for the Porta Pro, which looks similar. I think the QZ2000 has a bigger "inside" dimenstion, about 35 x 40 mm, so these are a tight fit, but they work for now. But I don't think these are any different than the foam covers you can buy for a dollar each elsewhere.OD is 48mm, "ID" 32 mm, 9mm deep.

Would recommend ... comfortable ... easy to replace ... would buy from seller again.

a little better fit than the original but that is possibly due to my ear size.

It arrived quickly and they fit perfectly.

If you are considering the purchase of these Headphone Covers because you have done so in the past and they worked well for you, suggest you think twice.I have purchased these repeatedly in the past with no problem whatsoever. This time around total disappointment is my reward for trusting this manufacturer. I can take a hint and the message I've received is, “We do not care.”I can not speak for any change in durability, simply because the Covers will no longer mount on the headphones so they will never see any use. There is no depth in the current design to allow for the earpiece to actually insert in to the Cover. If you have the patience you might eventually be able to wrangle them into the correct position, but they will pop right off as soon as you release the two-handed grip necessary to place them there.My supposition, based on that the packaging has gone generic, is that Koss (a Brand I previously trusted implicitly) has farmed out production and “quality” control to another Vendor. Total waste of my time, money, and effort, as well as a betrayal of expectations.