EASY INSTALLATION Smooth installation with this complete replacement ear pad kit compatible with Bose QuietComfort 45 headphones. No special tools are needed and the package includes a step-by-step guide that you can follow. EXTRA THICK & COMFORTABLE: These QC45 ear cups have 20% more memory foam, which adds thickness and increases comfort for long listening sessions. Extra Durable and Firm:The inner seams of this replacement ear pad kit for Bose QC45 are made with glue reinforced stitching, which prevents your ear pads from splitting. Combined, these additions should increase the life of your pads. Improved noise cancellation and sound cancellation: Old, worn ear pads have a negative impact on the sound performance of your headphones. These ear pads for the QC45 (QuietComfort 45 headphones) fit comfortably in your ear, blocking out noise and adjusting the sound, so you can let yourself go to the pace. FITS LIKE A GLOVE: These ear pads, made by Wicked Cushions, fit perfectly on the following models of Bose helmets: QuietComfort 47 Coussinets de remplacement pour le casque Bose QC45 (QuietComfort 45)