Features: Premium protein leather and memory foam ear cushions deliver cloud like comfort for extended wear without ear fatigue, specifically engineered for earphone Series 3310 headsets (Model 4A78). molded shape secure perfect alignment with original earcup dimensions while compactness sponge construction resists deformation and extends product life . Essential for remote workers, competitive gamers, and frequent travelers requiring uninterrupted sound performances during event . Optimizes conference call clear in open offices and enhances gaming enjoy by blocking 32% more mood noise than standard ear pad . grade replacement cushions combine medical materials with sound optimized airflows channels for balanced sound reproduction. Specifications: Component : sponge Size: about 65x65mm/2.56x2.56inch Package Includes: Pair Headphone Cover note: 1.Please allow 1-2cm errors due to manual measurement, make sure that you do not mind before you order. 2.Due to the difference between different monitors, the picture may not reflect the actual color of the item.