Why Choose Gvoears Cushions? Thicker than OriginalsSofter Memory FoamBetter StretchinessNo Seam LinesMore color options The replacement ear pads are thicker than the original ear pads, making the headphones more comfortable to wear. The increased thickness not only reduces pressure on the outer ear, but also on the temple pads on the headband. (note: The portapro earpads is perforated cotton, take the heat cutting method, the internal surface will leave a little uneven color block, belongs to the normal phenomenon, does not affect the use of ear cushions as well as beautiful.) Ear Pads Upgrade with Increased Thickness Fine Foam with High Quality Resilience The replacement earpads can be used with any headphone that fits this earmuffs size (not only for Koss Portapro Headphones). (diameter of the inner space of the earcup is 3.5cm / 1.38in) Better Stretch and Comfort The replacement ear pads are made of a high quality material and have a nice color and texture. No matter how you knead the sponge, it is back to its original state. These pads are a huge improvement in comfort over the stock earpads and are gentle on the ears. 1 Pair (Blue) 1 Pair (Orange) 1 Pair (Green) 1 Pair (Black) 1 Pair (Rose) Add to Cart Add to Cart Add to Cart Add to Cart Add to Cart Customer Reviews 4.6 out of 5 stars 74 4.6 out of 5 stars 74 4.6 out of 5 stars 74 4.6 out of 5 stars 74 4.6 out of 5 stars 74 Price $11.59$11.59 $11.59$11.59 $11.59$11.59 $11.59$11.59 $11.59$11.59 Color Orange Orange Green Black Rose Material Foam Foam Foam Foam Foam Compatible for Koss Portapro, Koss KPH40, Koss KSC35, Koss KTXPRO1, KSC11, KSC17, KSC75. for Koss Portapro, Koss KPH40, Koss KSC35, Koss KTXPRO1, KSC11, KSC17, KSC75. for Koss Portapro, Koss KPH40, Koss KSC35, Koss KTXPRO1, KSC11, KSC17, KSC75. for Koss Portapro, Koss KPH40, Koss KSC35, Koss KTXPRO1, KSC11, KSC17, KSC75. for Koss Portapro, Koss KPH40, Koss KSC35, Koss KTXPRO1, KSC11, KSC17, KSC75.