【Compatibility】Replacement ear pads cushions for Koss Portapro, Koss KPH40, Koss KSC35, Koss KTXPRO1, KSC11, KSC17, KSC75. | 【Colors Available】Earcups available in a variety of colors: black, orange, red, rose, blue and green. Catch on a new lease of life for your Porta Pro. Portapro ear cushions are easy to install. | 【Materials】The ear pads are made of comfortable and adaptive memory foam with a certain amount of stretch. Bring you a comfortable wearing experience. | 【Added Thickness】The earpads are thicker than the originals and they place the drivers further away from the ears, making the headphones more comfortable to wear. | 【Package Contents】2 pair of headphone earpads (rose & black), 2 x Alcohol wipe pad.