?This pair of ear cushions is made of soft memory foam and artificial leather， which makes your wearing cozy and comfortable. With it， you can enjoy your stereo music to the fullest. They are really good replacements for KOSS Porta Pro PP Headphone. Features: Black ear cushions for KOSS Porta Pro PP Headphone? Soft and durable? The ear foam will enhance the bass performance of your headphone Material: Soft foam and PU leather Color: Black Compatible With: KOSS Porta Pro PP Headphone KOSS KSC35， KSC75， KSC55， KSC50， KSC-10， KTX PRO1， KTX8， PTX6， KSC-11 KSC17， KSC7， KSC-12， CX6， KTX16， SA and UR5 AKG-K24P / AKG-K26P / AKG-K412P / AKG-K402 / AKG-K403 / AKG-K414P / AKG-K416P / AKG-K271P Sennheiser PX100 / PX100 II / PC130 / PC131 / PC145 / PC30 / PX80 / PMX100 Also suitable for other headphone earpads that meet the right size. Size: Outer Diameter: Approx. 1.97 inch / 5cm (front)， 1.57 inch / 4cm (back) Inner Diameter: Approx. 0.79 inch / 2cm Thickness: Approx. 0.43 inch / 1.1cm Package Includes: 1 pair of ear cushions for?KOSS Porta Pro PP Headphone