1,These ear pads are mainly designed to fit the following Bose over-ear headphone models, and they will not fit any other model that is not stated on our list. Ae2 / Ae2i / Ae2w SoundTrue Around-Ear 1 / SoundTrue Around-Ear 2 SoundLink Around-Ear 1 (DON'T FIT SoundLink Around-Ear 2) 2,What Makes Us Different? 1)Softer and smoother protein leather,high-density memory foam enhance comfort the ear pads. 2)Stronger protein leather increase the lifespan of the ear pads. 3)Big enough ear hole offers an enhanced level of comfort for your ears. 4)Thicker memory foam and thicker sealing ring optimize your headphones noise-cancelling acoustics. 5)Impeccable craftsmanship makes you satisfied with the purchase from us.