About this item Compatible: These earpads are compatible with HD4.50BT, HD4.50BTNC, HD4.50SE, HD4.40BT, HD458BT, HD 4.30G, HD 400S, HD350BT, HD300, and HD 4.20S headphones. Ear cushions give your headphones a new look. Enhance the Sound: These ear cushions use a softer sponge to fit the ears better, effectively isolating noise without compromising sound quality, immersing you in your audio experience. Comfortable Material: These earpads are made with comfortable sponge and protein leather to ensure that the headphone cushions are ergonomic and allow for all-day use without discomfort. Sturdy and Durable: Designed for durability, these headset earpads utilize high-quality leather and glue to prevent tearing, with the ear pads securely attached to the leather through stitched sponge pads. Quick Installation: An installation video is provided, allowing you to quickly restore your headset's look without any additional tools. Dimensions: 3.6 x 2.9 x 1 inches.