Easy Installation: Smooth installation with this complete replacement ear pads kit compatible with Bose QuietComfort 45 headphones. No special tools are needed and the package includes a step-by-step guide for you to follow along to. Extra Thick and Comfortable: These QC45 Earpads have 20% more memory foam, adding thickness and increasing comfort for long listening sessions. Extra Durable and Firm: The inside seams on this replacement ear cushion kit for Bose QC45 are made with stitching that is reinforced with glue, which prevents your cushions from splitting. We also increased the firmness of the PU leather in these earpads, combined, these additions should increase your earpads lifespan. Enhanced Noise Cancellation and Sound: Old, beat-up ear cushions negatively affect the sound performance of your headphones. These earpads for QC45 (QuietComfort 45 headphones)comfortably conform to your ear, blocking out noise and dialing in the sound, so you can drift off into the beats. Fits Like A Glove: These ear pads, made by Wicked Cushions, fit the following models of Bose Headphones perfectly: QuietComfort 45