Made of high quality sponge, the headphone ear pad is soft and comfortable to wear. It is breathable and won't affect the sound quality and can improve the bass. The ear pad can be a perfect replacement for your worn or damaged ear pad. It is suitable for most headphones. Item Name: Ear Pad Material: Sponge Quantity: 2Pcs Suitable: 3.5cm: for Technica EQ66, EQ77, EQ330, EQ33, for Sony Q22, DR-Q38, Q2LPQ68, BT140Q, Q23, Q50 4.5cm: for KOSS KSC35, KSC50, KSC55, KSC75 5cm: for KOSS SA, KSC35, KSC75, KSC55, KSC50, KSC-10, KTXPRO1, KTX8, PTX6, KSC-11, KSC17, KSC7, CX6, KSC-12, KTX16, UR5, K26P, K412P, K402, K403, K414P, K416P, K271P, for Sennheiser PX100, PX1001L, PX200, PC130, PC131, PC145, PX80, PMX100 5.5cm: for K420, K403, K402, K404, K412, K412P, Y30, Y45, K241, K450, K451, K452, K430, Q460, for Sennheiser MM450, PX90, for Edifier H690, for Beyerdynamic DTX501P, for Pennefather 1000, 2300, 1030, 1080 6cm: for Edifier K550, for Sony DR220 Features: Soft, Comfortable to Wear, Headphone Accessory Size Details: 3.5cm: 3.5cm x 3.5cm x 0.5cm/1.38" x 1.38" x 0.2" (Approx.) 4.5cm: 4.5cm x 4.5cm x 0.5cm/1.77" x 1.77" x 0.2" (Approx.) 5cm: 5cm x 5cm x 0.5cm/1.97" x 1.97" x 0.2" (Approx.) 5.5cm: 5.5cm x 5.5cm x 0.5cm/2.17" x 2.17" x 0.2" (Approx.) 6cm: 6cm x 6cm x 0.5cm/2.36" x 2.36" x 0.2" (Approx.) Notes: Due to the light and screen setting difference, the item's color may be slightly different from the pictures. Please allow slight dimension difference due to different manual measurement. Package Includes: 2 x Ear Pads (Headphone Not Included)