Geekria Earpads for AKG K430 K420 K450 K451 K480 Q460, Sennheiser PX100 PX200 Headphone Replacement Ear Pad / Ear Cushion Ear Cover Pads Repair Parts Compatible with AKG K430, K420, K450, K451, K480, Q460 Headphone (See full list of headphones in product description. ) Protein Leather for Extra Comfort, Memory Foam to Enhance Noise Blocking Cushions align with mounting posts inside the headphone earcups, snap easily into place. Product Dimensions: Diameter: Inner: 4 cm; Outer: 5.5 cm Geekria SureFit Guarantee: 100% Money Back if Not Fit